Upon a proposal from Portugal, the five lusophone countries Angola, Brazil, Cape Verde, Macau and Portugal came together to celebrate with a twin issue the 35^th anniversary of AICEP (Associação Internacional das Communicaçóes de Expressão Portuguesa – International Association of Portuguese Expression Communications). Stamps with the same design were all released on May 13, 2025, during the XXXII AICEP forum.

This AICEP anniversary issue could include the other countries members of the association, namely Guinea Bissau, Mozambique, Sao Tome and Principe and Timor, but so far no information is available from these countries (images provided by Enzo Cafaro, Italy and Kenneth Sequeira, Singapore – Image from Angola is still missing, although participation is confirmed).

In the previous blog page, we described souvenir sheets released on April 25, 2025 by Belarus and Russia to commemorate the 80^th anniversary of the victory of the Soviet people in the Great Patriotic War (1941-1945). Kenneth Sequeira, Singapore, reported stamps issued by Kazakhstan and Mongolia at the same occasion. The Kazakhstan souvenir sheet including a round stamp was issued also at the same date of April 25, 2025 and must be added to the previous countries. This souvenir sheet, printed only at 2,500 samples, became also available with a “PCC/RSS” overprint (Regional Commonwealth in the Field of Communication) within the stamp, not related to this joint issue. Mongolia produced a completely different stamp in sheetlets of 4 [2×2] released on April 30, 2025. It is not clear if this fourth country participated to a joint effort with the three other countries, and for the time being these stamps will only be described as a footnote in the same entry.

Enzo Cafaro, Italy, was able to provide the preliminary sketches of the joint issue between the Russian Federation and the Dominican Republic planned for July 17, 2025. The final design may still change slightly but illustrations show that it will be almost identical for both countries.

Some surprising self-named joint issues appeared over the past months. The first one is related to the 90th anniversary of the relationship between Egypt and Switzerland. Egypt issued a stamp, but nothing was produced on the Swiss side. This Egyptian stamp will definitely remain an unilateral issue.

Also, Cambodia and Cyprus revealed by mid May (19 or 20) a so-called joint issue commemorating the 25th anniversary of their relationship. This information appeared on a UPU Facebook blog page (confirming a kind of postal commemoration), but the design that is shown looks like a stamp only through the perforations: there is no identified single country mentionned on the stamp, nor a denomination. As additional information from both countries is missing, it may be possible that this picture is just the symbolic design of the anniversary framed with perforations, and not a stamp, or at least not the final design. More information is needed here.

Ali Allawati, Oman, provided information from his country: next to the recently issued joint issue between Oman and Singapore reported under T20250221, Ali describes first an Iran-Oman issue (see illustration below), announced on May 27, 2025, issued in honour of the official Visit of His Excellency Dr. Masoud Pezeshkian, President of the Islamic Republic of Iran, to the Sultanate of Oman. The Oman stamp is not yet available for purchase, and information is missing from the Iranian side.

On April 22, 2025, Oman Post had also annnounced the issuance of a joint stamp celebrating the enduring relations between the Russian Federation and Oman, coinciding with the state visit of His Majesty Sultan Haitham bin Tarik to Russia. At this stage this is the only information available.

To the already very large October 9, 2024 UPU joint issue, one has also to add Aruba as a new country, which released a souvenir sheet containing a triangular shaped stamp, showing the UPU 150th anniversary logo in the margin. The souvenir sheet was issued on October 9, 2024, but was discovered only recently.

For those interested in the 2025 Europa stamps, this is the status of the issuing programme. The stamps with common topic National archeological discoveries (which topic was postponed to 2025 from originally 2024), were issued with a date centered around May 9, 2025. This year, these stamps are not considered as joint and will be reported under a simple list entitled [N20250509]. In the following list, empty bracket represent countries that announced their participation but from which data and in particular issue date are still missing, while absence of date means that those stamps were issued on May 9, 2025: Aland – Albania () – Andorra (French) (May 11) – Andorra (Spanish) – Armenia (April 29) – Artsakh (Armenia) () – Austria (May 1) – Azerbaijan (May 5) – Azores – Belgium (April 7) – Bosnia Herzegovina – Bosnia Herzegovina (Croatia) (April 5) – Bosnia Herzegovina (Serbia) (April 24) – Bulgaria – Croatia – Cyprus – Cyprus (Turkish) (May 8) – Czech Republic (May 7) – Denmark (May 28) – Estonia – Faroe (May 26) – Finland (May 7) – France – Georgia – Germany (May 8) – Gibraltar (May 8) – Greece (May 7) – Greenland (May 26) – Guernsey (May 1) – Hungary – Ireland (May 8) – Isle of Man (April 8) – Italy – Jersey (May 5) – Kazakhstan () – Latvia – Liechtenstein (April 1) – Lithuania (April 25) – Luxembourg (May 6) – Macedonia (North) (May 7) – Madeira – Malta – Moldova (April 11) – Monaco – Montenegro – Netherlands – Norway (April 24) – Poland (April 28) – Portugal – Romania (April 29) – San Marino (February 11) – Serbia (May 6) – Slovakia (April 30) – Slovenia – Spain – Sweden (April 24) – Switzerland (May 8) – Türkiye (Turkey) – Ukraine (August) – Vatican (May 27)

Eventually, we learned also that a new crypto-stamp joint issue involving Austria, Belgium, Luxembourg, the Netherlands and Portugal. Details will be known during the summer.