On June 12, 2026, Serbia and Slovenia issued a similar souvenir sheet containing one single stamp entitled “Humanitarians, Queen Marija Karađorđević and her court lady Franja Tavčar”. The Serbia souvenir sheet, 100×67 mm, was issued at 10,000 samples while the Slovenian souvenir sheet was printed at 18,000 samples. (Information was provided by Janko Stampfl, Slovenia).

Russia and the Philippines celebrated their 50th anniversary of diplomatic relationship on June 2, 2026 with an issue on June 18, 2026 of stamps representing fauna: the Russian Greater jerboa (Allactaga major) and the Philippine mouse deer (Tragulus nigricans). To date, no information from the Philippines postal administration is available, but Enzo Cafaro (Italy) was able to provide a copy of the Philippines miniature sheet, confirming that it could translate in either a twin or a concerted issue. Any additional information is welcome.

Moldova and Romania celebrated the centenary of the first flight of the Bucharest – Galați – Chișinău airmail service, illustrated by a Haviland DH-9 plane. This is a nice twin issue released on June 24, 2026. Romania released two stamps, showing either a plane over a landscape with a bridge (design A), or a flying plane, next to the names of the three towns from the airmail line, as well as a cancelled cover (design B). These two stamps were issued in panes of 32 stamps, or in miniature sheets of 3 stamps and a label. Additionally, a souvenir sheet with a single stamp showing the design A, with flag, cancelled cover as well as a black and white photograph became also available. Moldova released the same two stamps A and B in miniature sheets of 8 stamps (with two additional labels) and a souvenir sheet containing the design B, together with a map.

Note that 2×3,200 Romanian stamps (A and B) were printed in panes of 32 stamps, i.e., in 2 sheets showing 4 lines of 8 stamps. The third line was intentionally printed upside down, making possible to create 8 pairs tête-bêche out of each each pane. These printed stamps represent only 100 panes of 32, from which a maximum of 2×8 tête-bêche pairs could have been isolated, resulting in a maximum of 2×800 tête-bêche pairs possible. The real number of tête-bêche pairs will definitely remain far below that figure.

On June 10, 2026, Türkiye issued a souvenir sheet showing the portraits of Yunus Emre (1240-1320), Turkish folk poet, and Hakani-I Sirvani (1126-1199), actually Afzal al-Dīn Badīl ibn ʿAlī ibn ʿOthmān, commonly known as Khāqānī, Persian poet, entitled ‘joint issue with Azerbaijan‘. Unfortunately, by the time of publishing this page, no information has been made available from this country.

The situation is similar with a joint issue involving Morocco and Mauritania, which illustration was provided by Eric Contesse (France). On the Moroccan stamps, it is clearly stated that it is a joint issue. These stamps are also supposed to be released during the month of June and information from Mauritania is missing so far.

Another Türkiye – Romania joint issue was announced in the Türkish philatelic program, expected to be released on June 30, 2026, but no counterpart is mentionned in the Romanian philatelic program. On the other hand, Romania still describes a joint issue with Kazakhstan scheduled for June 2026 (Biosphere reserves), but there are no news that came up recently from both countries about this issue.

The first year of office of the Pope Leo XIV announced originally by the Vatican State as a joint issue with Italy, was eventually reduced to an anniversary issue from Vatican alone, on May 8, 2026, and this entry had to be removed from the poten,tial 2026 issues.

All the above news were introduced in the catalogue which is now available in an updated form in the appropriate section.