Anniversaries Stamp Thematic on WOPA+
Anniversaries
| 100th Anniversary of the Mirko Vesovic Economics Secondary School |
| Issued: 14.06.2023 |
| ›Montenegro |
| 10 Years of HM The King on the Throne |
| Issued: 12.06.2023 |
| ›Belgium |
| 150th Anniversary of the Latvian Song Festival, Latvijas Pasts |
| Issued: 09.06.2023 |
| ›Latvia |
| 30th Anniversary of Monaco's Membership to the United Nations |
| Issued: 31.05.2023 |
| ›Monaco |
| 100 Years of the Death of Joaquín Sorolla |
| Issued: 30.05.2023 |
| ›Spain |
| Portuguese Catholic Scouting (CNE) 100th Anniversary |
| Issued: 27.05.2023 |
| ›Portugal |
| UNITAR Sheet |
| Issued: 26.05.2023 |
| ›United Nations |
| 200th Anniversary of the Birth of Dr. Ante Starcevic (C) |
| Issued: 25.05.2023 |
| ›Croatia |
| 100 Years - The Little Chapel Part 2 |
| Issued: 24.05.2023 |
| ›Guernsey |
| 100 Years of the Gelle Fra |
| Issued: 16.05.2023 |
| ›Luxembourg |
| Alexandru Ioan Cuza, 150 Years Since Death |
| Issued: 15.05.2023 |
| ›Romania |
| Prominent Armenians - 100th Anniversary of Hrachya Ghaplanyan |
| Issued: 15.05.2023 |
| ›Armenia |
| Joint Issue with Switzerland - 100 Years Of The Customs Treaty |
| Issued: 14.05.2023 |
| ›Liechtenstein |
| Prominent Armenians - 100th Anniversary of Karp Khachvankyan |
| Issued: 12.05.2023 |
| ›Armenia |
| Prominent Armenians - 150th Anniversary of Nikol Aghbalyan |
| Issued: 11.05.2023 |
| ›Armenia |
| Heydar Aliyev 100 Years (x1 Stamp) |
| Issued: 10.05.2023 |
| ›Azerbaijan |
| Heydar Aliyev 100 years (x6 Stamps) |
| Issued: 10.05.2023 |
| ›Azerbaijan |
| 75th anniversary of the birth of Gino Strada |
| Issued: 09.05.2023 |
| ›San Marino |
| 60th anniversary of the Cassa Edile Sammarinese |
| Issued: 09.05.2023 |
| ›San Marino |