November 2025 update

Latest issues:

On November 6, 2025, PR China joined Samoa to issue stamps related to birds. Two identical stamps were issued by each country, showing the white horse chicken (Crossoptilon crossoptilon) and the tooth-billed dove (Didunculus strigirostris). Detailed information from Samoa is still missing and the Samoan stamps depicted below may only be a design and not the final one.

From November 9 to 21, 2025, China (PR), Hong Kong and Macau organized the 15th Chinese National Games held in Guangdong, Hong Kong and Macao. These games were celebrated with stamps from each postal entity that became available on the opening day on November 9, 2025. China released three stamps representing artistic (synchronized) swimming, fencing and table tennis, in panes of 12 each (3x[3×4]), but also as a souvenir sheet containing two strips of the three stamps. Hong Kong issued four different stamps depicting rugby sevens and track cycling, fencing and beach volleyball, golf and triathlon (swimming, cycling, running), handball and basketball. These stamps were issued in panes of 25 stamps (4x[5×5]). Macao released four different stamps showing rugby sevens, basketball, table tennis and volleyball in form of blocks of 4 printed in panes with 4 blocks each, also in four different orders, so that the four se-tenant stamps can be collected either in blocks or in strips of 4 ([2b4x2]. Additionally, all these 11 stamps were printed also within a souvenir sheet, which leads to consider this issue as a Se-tenant issue [S20251109], similar to the Chinese astrological signs stamps issued by these same three postal entities at the beginning of each year (Eric Chan, USA).

On November 25, 2025, as scheduled, Luxembourg and the Vatican State joined to celebrate the 100 years of the Pontifical Institute for Christian Archeology – Pontificio Istituto di Archeologia Cristiana (PIAC), with an identical stamp showing the portrait of Bishop Jean-Pierre Kirsch (1861-1941), the building of the historic headquarters on Via Napoleone III in Rome and the seal of the Institute showing the ‘Christ shepherd’. The PIAC was founded on December 11, 1925, by Pope Pius XI with the Apostolic Constitution Ad providentiam of March 2, 1925, and with the motu proprio “The Primitive Christian Cemeteries,” thanks also to the dedication of the Luxembourgish prelate Johann Peter Kirsch, who was its first Director (Eric Contesse, France and Enzo Cafaro, Italy).

At the occasion of the 75th anniversary of the relationship between Indonesia and the Vatican State, the Vatican issued a stamp on November 7, 2025, that has not yet found a counterpart in Indonesia. This stamp description is reported here primarely to obtain information out of Indonesia and to confirm that it will probably not lead to a joint issue.

From Jaap Sarelse, the Netherlands: On May 7, 2025, Liechtenstein and Switzerland each issued a crypto stamp (Crypto CHLI) as a joint issue showing a cow and mountains, forming a continuous image when placed next to each other. The cow was available in 6 colors, with the rainbow cow having the lowest circulation (50) and the green cow the highest 7500. FDCs were also available, but in limited circulation: 10 copies with rainbow cows; 2500 copies with green cows. This issue was reported earlier.

Liechtenstein and Switzerland decided to extend this series with a similar crypto joint issue. On November 19, 2025, the so-called world’s first Christmas Crypto Stamp was released as an exclusive joint issue of Liechtenstein and Swiss Post (Crypto CHLI 2.0). The same six crypto cows from May 7, 2025 are now presented in a winter landscape. The stamps are embellished with glittering snowflakes. As you can imagine, these items, considered more as numismatic items than philatelic ones, even if they really can be used as stamps, look again like a lottery and have been created to fool collectors. Prices for individual items vary between 10 and 500 Swiss Francs (CHF) for stamps and between 30 and 2,000 CHF for mixed FDCs. We do not recommend to buy them, but they will be reported in the catalogue in the same way as the original items were described [P20250507], with the usual purchasing warning.

On September 16, 2025, San Marino issued a series of four stamps dedicated to UNESCO sites in Andorra, Cyprus, Malta, and Portugal. None of these stamps was associated with stamps issued at the same date by one of these countries. On November 4, 2025, however, the post of Spanish Andorra issued a stamp related to ‘about’ 30 years of diplomatic relationship (1993-2023), without any counterpart from San Marino. There is no link between these two stamps and therefore, also no joint character for these issues. They are reported here simply for information purpose (Enzo Cafaro, Italy).

Issues to be released soon:

On December 1, 2025, Cyprus and Vietnam will celebrate their fiftieth anniversary of diplomatic relations with a twin issue. The Cyprus FDC became available recently (Kenneth Sequeira, Dubai).

The joint issue between Russia and Oman, originally scheduled for April 22, 2025, postponed to September 26, 2025, then successively to October 15, November 14, and December 5, 2025, is now planned to be issued on December 10, 2025.

The Barbados embroidery dove stamp associated to the [T20250919a] issue is apparently expected to be issued on December 8, 2025.

All this information was introduced in the updated catalogue sections (Vol 16). A great thanks to all the contributors mentionned in the text between brackets.

September 2025 update

Sorry for this long time of silence. A lot of new information was gathered over this past month, in addition to the “Dove of Peace” series described in the previous page. The data are summarized hereunder, thanks to Kenneth Sequeira (Dubai), Ali Allawati (Oman), Adam Paish (UK), Enzo Cafaro (Italy), Dominique Josse (France), Sim Tng Kwang (Singapore), Mohamed Achour Ali Ahmed (Algeria), and Marci Jarvis (USA).

The official day of issue of the Oman stamp related to the Arab Postal Day from August 3, 2025, initially announced as being released on August 10, 2025 for this country, has to be corrected to August 3, 2025, according to FDC images provided by Ali Allawati.

The Oman stamps from the Oman Iran issue initially scheduled to be released on May 27, 2025, became available only on August 26, 2025 (date shown on the Oman FDC cover). However, information from Iran is still missing and we do not know if it will become a real joint issue, despite the clear indication on the stamp itself.

The Maldives-Singapore joint issue which design was revealed on June 30, 2025, was finally released on September 5, 2025. This issue includes two stamps featuring fishes, turtle, corals, the Lazarus Island (Singapore) and Hulhudhoo (Maldives), which were also included in a souvenir sheet (Singapore). Good quality images and final product description from the Maldives are still missing.

Singapore was involved a second time this month, on September 19, 2025, to celebrate the 60th anniversary of Thailand-Singapore diplomatic relations. As previously, Singapore issued also both stamps in a form of a souvenir sheet. The Thai stamps has been printed in se-tenant checkerboard-formatted sheets of ten stamps.

On September 16, 2025, the 640 years of the crowning of Sigmund of Luxembourg in Hungary was supposed to be celebrated by Luxembourg and Slovakia with a common stamp which design was released earlier this year by the Slovak Post. It happened that this issue disappeared from both postal administration philatelic programs. Explanations are needed here.

The Mythical heroes crypto-stamps series was issued on September 18, 2025 (see detailed description under previous page). The final illustrations given below show small changes compared to initial illustrations provided earlier (e.g., new denomination for Luxembourg). The series includes Austria (2 units, Zeus and Hera, 2×150,000), Belgium (Athena, 20,000), Luxembourg (Artemis, 15,000), Netherlands (Hermes, 25,000) and Portugal (Poseidon, 25,000). The digital twins are stored in the blockchain in five different colors. The likelihood of getting a particular color depends on the color: for Luxembourg stamps, there are 150 red, 1,005 yellow, 1,995 blue, 4,005 green and 7,845 black stamps; for the other countries the exact number of colored subtypes has not been published but the figures remain probably close to the same ratio, i.e., 1% (red), 6.7% (yellow), 13.3% (blue), 26.7% (green) and 52.3% (black). The digital twin of the crypto stamp is randomly generated. By scanning the QR code on the stamp with a smartphone, one will find out which color is linked to the crypto stamp.

As an example, the Luxembourg stamp digital twins in the blockchain look as follow:

On September 25, 2025, the Embassy of the Republic of Peru in Kuwait hosted an event to present a commemorative postage stamp marking the 50th anniversary of diplomatic relations between Kuwait and Peru. The postage stamps are featuring Kuwait’s Red Palace and Peru’s Real Felipe Fortress. Unfortunately, to our knowledge, this Peruvian stamp will remain unilateral.

The Oman-Russia joint issue, originally scheduled for April 22, 2025, postponed to September 26, 2025 (Oman source), then, a few weeks ago to October 15, is now scheduled for November 14, 2025. The date of October 15, 2025 remains unchanged for the issue of the joint stamps involving Laos and Russia and the first illustration of the Russian stamps became available recently.

Dove of Peace embroidery

The ‘Dove of Peace’ stamps were issued as expected on September 19, 2025 (except for Greenland and Switzerland). The final list includes Aland – Armenia – Austria – Barbados () – Cyprus – Faroe Islands – Greenland (September 12) – Liechtenstein – Luxembourg – Switzerland (September 4) – United Nations (Geneva) – United Nations (New York) – United Nations (Vienna). These embroideries have a size of about 55×42 mm. Barbados was mentioned in the advertisement of the UNPA, but without illustration, on the contrary to all others, and so far no detailed information is available. If this information is confirmed, then it would not be surprising that other countries could also join over the next months. This has to be watched closely (details provided by Jaap Sarelse, the Netherlands, and Enzo Cafaro, Italy).

The denominations on the stamps are quite high (5 to 10 €uros) and the printing runs remained low. The first data we had access to are related to the following postal administrations: Aland [13,000] – Armenia [5,000] – Austria [90,000] – Liechtenstein [18,000] – Luxembourg [30,000] – UN Geneva [12,300] – UN New York [10,800] – UN Vienna [13,900]. The stamps from the countries with lower printing runs were sold out on the first day. Stamps really used on mail will be exceptions, while quality of the cancellation, even on first day covers, will remain bad, consequence of the thickness of the embroidery. The three stamps from the UPU administrations became available as a mixed FDC. Eventually, these stamps are just products for collectors.

UPU release also a label with the same shape, showing only the word “PAIX” and without denomination (so not considered as a stamp). This label attached to postal cards, without cancellation, was distributed to UPU VIPs, and some of them became available during the 2025 PhilaKorea philatelic exhibition. The printing number is unknown and the first items seen on Delcampe are sold above €200.

Enzo provided also a link to a very nice short videoStitch by Stitch‘ created by Liechtenstein Post, showing the production steps of these specific stamps.

Arab Post Day update and more to come

Both previous blog pages triggered attention from collectors and resulted in additional information that help complete the catalogue:

Regarding the Arab Postal Day issue [T20250803], two additional countries have to be added to the already reported list (Algeria, Iraq, Tunisia, and the United Arab Emirates) namely, Egypt and Oman which issued their stamps respectively on August 3, 2025 and August 10, 2025 (Information provided by Mohamed Achour Ali Ahmed, Algeria and Ali Allawati, Oman).

The 80th Arab League anniversary issue from March 22, 2025 [T20250322] was also completed by two stamps issued in miniature sheets of 3 pairs from the United Arab Emirates. These stamps were issued on August 18, 2025 (Information provided by Kenneth Sequeira, Singapore).

The previous blog page was also missing the image of the Russian stamp jointly issued with North Korea on August 15, 2025. Illustration was provided by Kenneth Sequeira, Singapore, confirming the twin character.

I also made a comment earlier that embroided stamps are never used postally. Henri Aronis (France) provided a proof that this can happen with a Swiss stamp (year 2000), although not part of a joint issue. As expected, the thickness of the ‘stamp’ makes cancellation illegible. This cover was sent from Switzerland to Niger. Thanks Henri.

Jaap Sarelse (the Netherlands) reacted on the comments provided earlier about the July 5, 2025 Cape Verde – Portugal joint issue and at the same time provided information about Angola, a third country joining this issue, with the following:

The text suggests that it is a joint issue in which only Cape Verde and Portugal are involved. However, Angola is also involved with an identical stamp. Not to commemorate Angolan independence, but purely focused on the independence of Cape Verde. Some evidence:

  • In the leaflet of the Portuguese Post (6 pages) the text on page 5, 7th and 8th line from the bottom reads: ‘To help consolidate the historic memory of the founding of the Republic of Cabo Verde, a joint stamp issue is being released by Angola, Cabo Verde and Portugal’.
  • On page 5, one can find the stamps of Angola on the top row. Cabo Verde is also mentioned on this stamp at the bottom right.
  • Finally, only Cabo Verde is mentioned in the logo on page 1. I suspect that in the context of ’50 anos Independência Nacional’ Angola will get its own joint issue and that the name Angola will then adorn below the stars in the logo

Thanks, Jaap for this complement. Catalogue will be updated. Here are the additional illustrations (Angola stamp illustrations provided by Kenneth Sequeira):

Additional information relative to issues to come include the following:

  • The Oman – Russia originally scheduled for April 22, 2025, is now postponed to September 26, 2025 (Oman source) or October 15, 2025 (Russian source), not clear at this stage. It will show maps and honour Omani explorer Ahmed bin Majid and the Russian traveler Afanasy Nikitin
  • Kenneth Sequeira reported also two modifications in the Russian philatelic programme for 2025: a) the RCC stamps will be issued on August 23, 2025, but over the past years these stamps involving all CIS countries were not anymore considered as joint and there is no hint that this will change this year; b) the anniversary of the liberation of Korea will be celebrated by overprinting the August 15, 2025 joint issue with North Korea. These stamps will be issued on September 2, 2025
  • On October 7, 2025, the France – Japan is also confirmed. Japan stamp designs became available (information provided by Dominique Josse, France)

  • On August 15, 2025, Argentina issued a stamp to celebrate 60 years of immigration from Korea. No stamps related to the same topic was seen so far in the South Korea philatelic program. This issue may remain unilateral (information provided by Enzo Cafaro, Italy)

  • Our friend Luis Alejandro Malanco Reyes (Mexico) is working on a Mexican stamp catalogue (which of course includes also joint issues involving Mexico) and brought on line the first part of his work (years 2001-2025) with free access: Catálogo Filatélico México . Congratulations Luis and keep doing the good job.

Finally, some information about the next joint crypto-stamps issue (not recommanded to include in the joint issue collection as explained earlier): This will be the fourth crypto joint issue after the 2022 Austria-Netherlands (Ox), 2023 Austria-Luxembourg-Netherlands (Lion) and 2024 Austria-Belgium-Luxembourg-Netherlands (dragon) issues. The theme for this fourth issue is the Greek world of the gods. Five countries will participate and they made the following choice: Portugal – Poseidon, Austria – Zeus and Hera (2 stamps), Belgium – Athena, Luxembourg – Artemis and the Netherlands – Hermes.

Jaap Sarelse has succesfully created joint stamp covers with the previous crypto stamps and will try again this year with the six stamps. He provided the picture of the copy from year 2024. Such documents are close to unique.

The catalogue was update with all above new data. See updated Vol 1, Vol 15 and Vol 16

August 2025 News

Enzo Cafaro (Italy) completed the information about the dove issue described in a previous post and enhanced the list of participating countries. He provided also the picture of all to be produced items. The country list includes now : Aland, Armenia, Austria, Cyprus, Faroe Islands, Greenland, Liechtenstein, Luxembourg, Switzerland and United Nations (offices of Geneva, New York and Vienna, as well as UPU). By adding all the denominations we reach a total of about 75 Euros for 13 stamps that will never be used on real covers ! Our friend Jaap Sarelse (the Netherlands) will try to create some mixed FDC covers when stamps will be available. We wish him good luck as even the cancellation on such thick stamps (embroidery) may be tricky. If he succeeds, we promise to show results in these pages 😉

Luis Malanco (Mexico) provided some additional information regarding the Ecuador stamps issued on July 28, 2022, together with Mexico [T20220728] and honoring Leona Vicario and Manuela Saenz. The Ecuadorian stamps were issued at a much lower number than initially announced. The stamp was produced at only 2,000 samples, while the souvenir sheet only at 450 units. Those are the figures appearing in the official leaflet published by the “Servicios Postales del Ecuador”.

By coincidence, a forgotten issue was discovered recently by comparing data in the Michel Rundschau Catalogue. On December 29, 2022, Cambodia and Colombia issued twin stamps at the occasion of the 50th anniversary of diplomatic relationship between both countries. The stamps show a view of Ankor Wat and the Grave in the Archeological National Park of Tierradentro. This issue has not been reported so far and will of course be integrated in the catalogue. The difficulty will now be to find the stamps and not only reproductions.

During the year 2021, Colombia celebrated the 200th anniversary of its independence. Numerous stamps related to this event were issued during this year, which correspoded also to the first recognition of Colombia by other countries. By end of 2022, a first joint issue with Mexico was released (December 20, 2021). Surprisingly, during the following year of 2022, Colombia created a series of different stamps celebrating diplomatic relationships with different countries (not necessarily based on 200 years, but at least on rounded numbers): Egypt (February 23, 2022), USA (May 2), South Korea (May 6), Peru (May 27), Germany (August 5), Cambodia (December 29) and Chile (December 29. This type of issues continued the following year with Barbados (December 18, 2023), Canada December 22) and Argentina (December 23). During the year 2024, only stamps celebrating relationships with Sweden were released (exact issue date is unknown). Among all these stamps, and to our knowledge, only four translated in true joint issues, including Mexico [20211220], Peru (T20220527], Cambodia [C20221229], and Argentina [T20231223]

The design of the North Korean stamps to be released jointly with Russia on August 15, 2025 has been released. We have not seen yet the Russian stamps, but this country confirmed stamp issue in this honour at the same date. Design could be similar.

Last minute information: Kenneth Sequeira just provided information about stamps released by the Philippines on August 5, 2025, jointly with India, celebrating the 75th anniversary of their relationship. Each country issued a pair of identical stamps showing flowers. Note that despite being issued in 2025, the stamps celebrate an anniversary that took place in 2024.

Independence, kingdom and doves

New information about joint stamp issues was gathered over the past weeks:

Sudan is a country to be added to the joint issue already involving Algeria, Egypt and Tunesia, celebrating the 80th anniversary of the Arab League (1945-2025) and that is described under [T20250522]. The exact date of issue of the Sudanese stamp is unknown, but probably the same as for the other countries, namely May 22, 2025 (information provided by Kenneth Sequeira, Singapore).

Same additional information regarding the AICEP issue from May 13, 2025: Guinea-Bissau is also a country to be added to Angola, Brazil, Cape Verde, Macau and Portugal that have issued identical stamps at the same date. Guinea-Bissau issued one stamp in miniature sheets of 8 stamps [3×3] with central label and a souvenir sheet with a single stamp. We are still waiting for information about stamps from Mozambique, Sao Tome Principe and Timor.

On May 23, 2025, the 1100th anniversary of the Kingdom of Croatia and the coronation of King Tomislav was celebrated by the issue of identical stamps involving Bosnia Herzegovina (Mostar) and Croatia. This twin issue shows a bas-relief of the King Tomislav holding a scepter. BH Mostar issued the stamps in miniature sheets of 8 units ([3×3] including a central label) at only 5,000 samples, while Croatia issued 50,000 stamps in panes of 25 stamps and 5 labels [5×6].

The Dove of Peace project is progressing. Around September 20, 2025, ten to twelve European countries will issue an identical embroidered stamp with an equivalent denomination of about 10 Euros. Confirmation of participation is reported from Aland, Liechtenstein, Luxembourg, Faroe Islands and Greenland. These countries are all part of the SEPAC (Small European Postal Administration Cooperation – https://www.sepacstamps.eu/) which every year since 2007, issues by end of the Summer, a series of stamps with a common topic. If this embroided stamp corresponds to the 2025 SEPAC issue, this will be the first time that the SEPAC countries agree on a twin issue. Other countries including Gibraltar, Iceland, Isle of Man, Jersey, Malta, Monaco or Vatican City could in this case also participate. Over the past year, there was always at least one country not participating, so there is no guarantee that all twelve countries will be involved. However, Austria and Armenia have also already announced their participation, so, in the best case it could become an extended SEPAC issue (without mention of the SEPAC word on the stamp). We also have to wait to complete the information about this new series (information provided by Jaap Sarelse, the Netherlands).

The 50 years of independence of Cape Verde was celebrated commonly with Portugal on July 5, 2025, with the issue of two identical stamps. Only limited information is available so far from Cape Verde. The 50th anniversary of the independence of Angola will be celebrated on November 11, 2025 which could also result in an Angola – Portugal joint issue on that day.

Finally, we would like to thank Sherman Nassif (USA) for a financial donation that will help cover part of the web site fees.

All the above information was integrated in the catalogue Vol 16.

Latest October 2024

Eventually, the catalogue has been updated. The UPU anniversary stamps represented a lot of work and several new pages in the catalogue, even if not yet complete. Both catalogue volumes V01 and V15 were updated also with the additional information described below.

On October 21, 2024, a new joint crypto stamp series was issued involving Austria, Belgium (first Belgian crypto stamp), Luxemburg and the Netherlands, with topic dragon (2024 is Chinese year of the dragon). As representations of the dragons are different from one country to another, this issue is considered as parallel [P20241021]. Details about printing runs and colors of subtypes are provided in the catalogue. However, as for all crypto stamps, we continue to believe that these products are not real stamps (i.e. never used on mail) and closer to coins than to stamps, also with some good reasons to think they are products to fool collectors, we do not recommend to buy, except if you are an expert of crypto stamps and crypto money. Up to you to decide.

From Don Birschel (USA) who mentionned stamps issued at the occasion of the Vatican City – Panama 100 years of relationship. With Panama stamps issued on April 3, 2024 and Vatican stamp on May 21, 2024, also with different designs, they, unfortunately, cannot be considered as joint.

UPU 150th anniversary

The Universal Postal Union (UPU) is a specialized agency of the United Nations (UN) that coordinates postal policies among member nations and facilitates a uniform worldwide postal system. It comprises 192 member states and is headquartered in Bern, Switzerland. It was established on October 9, 1874, exactly 150 years ago.

Since more than one year, we know that this anniversary will be celebrated with a stamp which common design was proposed by UPU. In the past, the 75th (1949) UPU anniversary was celebrated, but in a non-coordinated way, mainly by colonial entities (British, Dutch and French – D19490704, D19491001, D19491010, D19491018) and the 100th (1974) anniversary with stamps that remained different for all participating countries (N19741009). The same situation happened in 1999, with absence of concertation for the 125th anniversary celebration (N19991009). Eventually, so far, only the 145th anniversary in 2019 (T20191009b) could be considered as a Twin issue.

During this year of 2024, a very large number of countries are participating. In the strict sense, this has to be considered as a true joint issue, even if there was no real cooperation between countries, but a proposal of a design accepted by most of them and translated in a locally adapted stamp, for a large part of them issued at the anniversary date. It is not an Omnibus series, as Omnibus is defined by a central printing, not by the large number of participating countries. The 2024 stamps will be reported in the catalogue as a Twin issue under [T20241009]. It is easily understandable that some joint issues collectors do not integrate such large series in their collection, in the same way Europa-CEPT stamps are not acceptable for them. Each individual collector has to decide on the basis of the following.

In the catalogue, the countries will be divided in subgroups:

  • A: the countries which take the exact original design proposed by UPU and issue the stamp(s) on October 9, 2024 (or actually around this date, plus or minus a week, roughly between October 1 and October 17, 2024), according to the definition of a twin issue [T]
  • B: the countries which take the exact original design but issue the stamp at a different date. It should not be surprising if some countries may issue their stamp in 2025 or even 2026. This is the equivalent of a Concerted issue [C]
  • C: the countries which use only a part of the design, actually integrating only the “150” logo and add some other illustrations. This logo can appear within the stamp, or on the margin of a souvenir sheet or within a label. Those stamps are also considered as twin or concerted issues of Type [T2] or [C2]
  • D: the countries which use a completely different design, but still issue their stamp(s) around October 9, 2024. This is the equivalent of a Parallel issue [P]. In this case, the original logo may appear on the stamp, but at a size that remains smaller than the half of the surface of the stamp
  • E: finally the countries that do not want to stick to design and date, and work on their own, just referring to the UPU anniversary. These countries are simply listed, without details, as they cannot be considered as joint [N].

We will have again to take care of stamps that are created by agencies that are producing stamps for certain countries but which have been given the freedom to issue stamps without a real control from the reference countries. These stamps are easily recognized by the number of stamps issued in a series and they are produced to fool collectors. In order to better identify these stamps and because they remain real stamps but never reach the originating country, they will be reported in the catalogue, but in italics. In the same way, some other stamps such as the French stamp with a full common logo are of private origin (personalized stamp) that cannot be considered as part of this joint issue either. This will be true for any other privately produced stamp from other countries, if any, and also described in italic characters.

The countries for which we already have information are reported below. If a date between brackets is missing behind the country name, this means that this stamp(s) was issued on October 9, 2024. If the content of the brackets remains empty, this means that the exact issue date is not known yet. A large number of images were provided by Enzo Cafaro (Italy). The following list is of course not yet complete.

Countries of type A (Twin [T1]): Algeria – Andorra (French) (October 10) – Andorra (Spanish) – Armenia – Bangladesh – Belarus – Bosnia Herzegovina (Bosnia) – Brazil – China (PR) – Croatia – Cyprus – Dominican Republic – Greece – Guernsey – India – Indonesia – Ivory Coast – Jordan – Latvia – Lithuania (October 4) – Mauritius – Moldova – Myanmar – Paraguay – Peru – Romania – Sri Lanka – Thailand – Turkmenistan (October 8) – Ukraine – United Arab Emirates

Countries of type B (Concerted [C1]): Argentina (August 28) – Azerbaijan (February 1)Burundi (September)Central Africa (September)Djibouti (September) – Georgia (June 1) – Guinea (September)Guinea-Bissau (September)Liberia (September)Mali (September) – Monaco (May 30) – Mongolia (September 25) – Sierra Leone (September)Togo (September)

Countries of type C (Twin or concerted [T2] or [C2]): Bosnia (Serbia) – Egypt () – France (October 14) – Hong Kong – Hungary (July 24) – Isle of Man (August 30) – Japan – Kyrgyzstan (October) – Luxembourg (September 10) – Macau – Malaysia – Morocco – Pakistan – Portugal – San Marino – Saudi Arabia () – Singapore – Slovenia – Spain – Syria – Tunisia – Türkiye – Uruguay – Uzbekistan () – Vietnam

Countries of type D (Parallel issue [P]): Australia (October 1) – Austria (October 4) – Brunei Darussalam () – Bulgaria – Czech Republic – French Polynesia – Germany (October 10) – Macedonia (North) – Mexico – Montenegro – Qatar () – Russia – Slovakia – Switzerland (September 5) – Tajikistan (May) – Vatican (September 16) – Wallis and Futuna

Countries of type E (not considered as joint): Belgium (June 10) – Serbia (May 25) – United Nations – Geneva (May 30) – United Nations – New York (May 30) – United Nations – Vienna (May 30).

So far, 86 countries are listed above to which one has to add 2 postal authorities that have issued stamps that cannot be considered as joint (Type E – United Nations offices are not taken in account as countries, UPU being a sub-unit of the United Nations). The UPU counts presently 192 members, which means information from 106 countries (!) is missing. Obviously there will be an update of this page. A great help is needed here to recover information from other participating countries. We are also missing better quality images for stamps from Ivory Coast and Ukraine. Thanks a lot in advance for providing name of missing countries, exact dates of issue, and when possible illustrations, printing runs, sizes of panels and by-product lists.

The catalogue pages should be updated within the next week.

Hungary – Luxembourg

100 years of diplomatic relationship between Hungary and Luxembourg were celebrated on March 12, 2024 with a joint souvenir sheet. These commemorative items feature two paintings by Mihály Munkácsy (1844-1900), one of Hungary, Dusty Country Road II (after 1874), and another of Luxembourg, Grazing Cattle Herd (1882), in recognition of the fact that the world-famous artist is one of the closest cultural ties between the two countries. Munkácsy’s wife was Cecile Papier from Luxembourg, with whom he lived near the Belgian border at Château de Colpach in Luxembourg. 

September 2023 News

The month of September led to more new products than the whole preceeding Summer period including some surprising items, next to the already reported PAPU issue (7 countries), the China-Hong Kong – Macau series and the Switzerland – South Korea stamps.

Don Birschel, USA, reported about an unexpected joint issue between Guatemala and Mexico, released on September 18, 2023 and related to the 175th anniversary of their relationship. The stamps represent the Pyramid of the Sun, San Juan Teotihuacan, Mexico and the Tempel of the Great Jaguar, Tikal, Guatemala (pre-Columbian Maya civilization). Don provided the images, but we are still missing some details about the Guatemala stamps.

The 200th anniversary of the relationship between Argentina and Brazil translated into a stamp showing the Iguazu falls at the Brazilian-Argentinian border, issued on September 7, 2023, while Brazil released on September 29, 2023, a panel of 8 stamps showing Mafalda comics from the Argentinian artist Quino. Despite the common title, this issue cannot be considered as joint (different dates of issue, different designs, no claim as joint – information provided by Enzo Cafaro, Italy).

On September 26, 2023, San Marino issued a stamp related to the 15th anniversary of relationship with Mexico. No Mexican counterpart was seen so far, and probably nothing has to be expected from the mexican side.

More recently, on October 2, 2023, Slovakia issued, jointly with Azerbaijan, stamps at the occasion of their 30 years of relationship, the same day Slovakia issued stamps with the Czech Republic (see previous blog page). This series describes folk music styles illustrated with string instruments: the Terchova region music and the Mugham Azerbaijani folk music. Azerbaijan has issued the stamps apparently only as a souvenir sheet at only 5,000 samples (Information provided by Eric Contesse, France).

A new crypto stamp (NFT) joint issue, to be released during the month of October 2023 (probably on the 23rd), was announced involving Austria, Luxembourg and the Netherlands. Stamps are similar. More details soon. For explanations about crypto stamps, see austria-netherlands-crypto-stamp.

There is still a problem with these new products: crypto stamps are always very expensive, their value is linked to crypto money that is fluctuating a lot over time (value of previous NFT stamps has dropped a lot recently) and above all, these so-called stamps are never used on real mail. To our opinion, they are more to be considered either as a piece of art or as a kind of currency, and seem to stay away from real philately (in terms of collecting items used to compensate for mail fees). Eventually, look like material to fool the collectors (abusive issues). Those stamps have to be reported in the catalogue as they are claimed as joint issue “stamps”, but there is no recommendation to buy them. On the other hand, a collection of such stamps on cancelled mail, i.e., for real non-philatelic mailing purpose, would be a real interesting topic. Apparently, in none of these countries, the denomination corresponds to a true postage fee and their use alone on a cover should not exist (except on FDC covers).

Update March 2023

Additional information provided during this month, not reported so far in other posts:

Eventually, both Don Birschel (USA) and Souvik Ghatak (India) found the Indian counterpart of the Luxembourg souvenir sheet of the joint issue between the two countries, already described in an earlier post. The Indian souvenir sheet was released at the same date, namely March 14, 2023.

From Adam Paish, UK: The discovery in March 2022 of the wreck of the Endurance, the barquentine that carried Ernest Shackleton and his crew on the ill-fated 1914-1917 Trans-Antarctic Expedition, is commemorated on a series of joint British Antarctic Territory – Falkland Islands – South Georgia & the South Sandwich Islands Territorial/Parallel [PD] stamp issued on March 27, 2023. The ship sank in October 1915, having been crushed by sea ice in the Weddell Sea before the expedition could begin. There are two stamps (issued in sheets of ten) and one souvenir sheet for each territory. 

Also from Adam Paish, UK: On March 13, 2023, the British Antarctic Territory and South Georgia & the South Sandwich Islands each released four stamps and a single-stamp souvenir sheet with images from the BBC’s Frozen Planet II television documentary series. The standard sheet stamps are issued only in pictorial single-denomination sheetlets of four. These stamps are also filed as a Territorial/Parallel [PD] issue. The BBC logo remains the only common item linking all stamps.

On March 29, 2023, Liechtenstein and Switzerland issued as scheduled the stamps related to the 100th anniversary of customs agreement binding both countries. Each country issued two stamps representing either the first lines of the contract text or the flags of both countries separated by a zip fastener. Liechtenstein issued also three postal stationeries (postal cards), but without common design. Mixed covers and mixed cards became available.

From Souvik Ghatak (India) and Kenneth Sequeira (Singapore): A surprise issue was announced involving India and Vietnam that were planning to release a joint stamp issue on traditional martial art, Kalaripayattu (India) and Vovinam (Vietnam). The original date of release was supposed to be February 28, 2023 but the issue was postponed to a later stage. In the meantime, a copy of the Vietnamese side of the joint issue became already available. A new release date was set at March 29, 2023, but no news is available from India and this date was postponed again to April 23, 2023. More details will come soon.

Eric Contesse (France) and Jaap Sarelse (The Netherlands) were wondering if the two stamps illustrated below have to be recognized as joint. They were issued at the occasion of the 15th anniversary of the declaration of independence of Kosovo and are identical. The Kosovo stamp was issued on February 17, 2023 in miniature sheets of 4 stamps [2×2]. Unfortunately, no information is available from Albania so far. Any help is welcome.


The following information has been added to or modified in the new version of Volume 15 (Vol 15 V4.04):

  • Update of the list of older issues i.e., Cuba – North Korea from August 29, 2020 [T20200829] (integrated in Volume 14 V4.02),
  • The above mentioned British Antarctic Territories – South Georgia [D20230313] and British Antarctic Territories – Falkland Islands – South Georgia [D20230327] stamps, as well as India – Luxembourg [T20230314] and Liechtenstein Switzerland [T20230329] have been integrated in the catalogue

The information related to complete descriptions (Table of topics, table of countries) of new sets of joint issues is also dispatched in Vol 1 V4.03. Note that the page “Philatelic resources” is constantly updated to maintain the most accurate level (which is not easy, corrections and additions are welcome) and changes will not be reported here.


Update February 2023

On February 28, 2023, the joint issue between Armenia and Slovakia was released as scheduled. It celebrates the 30th anniversary of relationship and the stamps depict the Tatev Monastery, in Syunik region (Armenia) built during the ninth century, included now in the UNESCO World Cultural Heritage list and the St George’s Church, in Nitrianska Blatnica (Slovakia) also from the ninth century. The particularityy of this issue comes from the way the stamps are produced. The stamps are printed in a pane size [5×9] containing both stamps, type A in the top half, type B in the bottom half, together with 5 central labels forming a central cross. The overall structure looks the following: 3 rows of 5 stamps A, a row containing 2 pairs of stamp A separated by a label, then a row with one stamp A, three labels and one stamp B, and a row containing 2 pairs of stamp B separated by a label, and at the bottom 3 rows of 5 stamps B. This structure leads to a sheet containing 20 stamps A, 20 stamps B and 5 labels. Each sheet can contain vertical pairs of se-tenant A-B stamps, but limited to two units per pane. Knowing that the total printing of stamps is 2×20,000 for Armenia and 2×100,000 for Slovakia, only respectively 1,000 and 5,000 panes have been printed containing a maximum of 2,000 and 10,000 vertical pairs respectively.

These miniature sheets could be cut a different way, by keeping in one piece the five central labels with the 2 stamps A and 2 stamps B in the four corners. Only a maximum of 1,000 units for Armenia and 5,000 for Slovakia of these cut outs of printed panels can theoretically exist. The central labels represent the flags of both countries, and the coat of arms of Armenia, respectively Slovakia. The two other labels contain the words ‘Armenia – Slovakia joint issue’ in English and Armenian for Armenia, in Slovak and Armenian for Slovakia.

Jaap Sarelse (The Netherlands) provided some information about the potential Cambodia-South Korea joint issue that was supposed to be released on February 10, 2023. The original source was the South Korean Philatelic Service. However, Jaap learned from two Cambodian sellers that no such an issue is mentioned in the 2023 list of Cambodian stamps. Also a seller from South Korea confirmed this is not a joint issue. The top margin of the souvenir sheet printed by South Korea is entitled “Protecting Endangered Species in Korea – Cambodia REDD+ Joint Project Area”, meaning the ‘joint’ character is refering to an area between both countries, and a common project, but not to this stamp issue. This entry is removed from the catalogue.

Don Birschel (USA) reports also about stamps released at the occasion of the Kuwait 62nd national day by both Kuwait (February 22, 2023) and the United Arab Emirates (February 25, 2023). Even if the Kuwait 62nd national day is celebrated by the UAE, there are no hints of collaboration between both countries and stamps are different. These cannot be considered as a joint issue.

A surprising joint issue between India and Luxembourg will be released on March 14, 2023. The information was first provided by Souvik Ghatak (India) and Kenneth Sequeira (Singapore). The Luxembourg post made the announcement as early as March 2, 2023, but it took some time for India to confirm, despite the fact that the designer of the miniature sheet is of Indian origin. The stamps relate to the 75th anniversary of the relationship between both countries and is illustrated by sculptures by Amar Nath Sehgal (1922-2007), an Indian sculptor, painter and poet who spent a large part of his life in the Grand Duchy of Luxembourg.

Up to now, there are no news from the Israel-India issue supposed to be released in the course of the month of February. In the meantime, however, the first image of the Israel stamp to be realeased on April 4, 2023 jointly with Cyprus was released. Topic is aerial firefighting. The Cyprus stamps has not been seen so far.


The following information has been added to or modified in the new version of Volume 15 (Vol 15 V4.03):

  • The above mentioned Armenia – Slovakia issue [T20230228] as well as the Poland – Slovenia [T20230306], the Poland – Vatican [T20230227] and the Ascension – British Antarctic Territories – Falkland Islands – South Georgia – Tristan da Cunha [D20230215] stamps have been integrated in the catalogue
  • Confirmation of the existence of mixed FDCs for the 2022 Argentina – Spain Juan Domingo Peron issue [C20220914]
  • Update of the list of new issues including Pakistan – Sri Lanka (2023), Japan – Peru (August 21, 2023), Japan – Vietnam (September 21, 2023)

The information related to complete descriptions of new sets of joint issues is also dispatched in Vol 1. Note that the page “Philatelic resources” is constantly updated to maintain the most accurate level (which is not easy, corrections and additions welcome) and changes will not be reported here.