Science & Technology Stamp Thematics on WOPA+
Astronomy
| Visions of the Universe |
| Issued: 11.02.2020 |
| ›Great Britain |
| 50th Anniversary Man On The Moon |
| Issued: 20.07.2019 |
| ›Malta |
| The Mayan Calendar |
| Issued: 21.12.2012 |
| ›Kyrgyzstan KP |
| Europa - Astronomy |
| Issued: 01.06.2009 |
| ›Gibraltar |
| Europa – Astronomy |
| Issued: 06.05.2009 |
| ›Romania |
Cryptocurrency
| Crypto Stamp - Caravel |
| Issued: 27.02.2023 |
| ›Portugal |
| Nikola Tesla Crypto Stamp |
| Issued: 20.12.2022 |
| ›Croatia |
| UN CRYPTO Stamps - Series II (3 Offices) |
| Issued: 18.11.2022 |
| ›United Nations |
| UN CRYPTO Stamps - Series II (New York) |
| Issued: 18.11.2022 |
| ›United Nations |
| UN CRYPTO Stamps - Series II (Geneva) |
| Issued: 18.11.2022 |
| ›United Nations |
| UN CRYPTO Stamps - Series II (Vienna) |
| Issued: 18.11.2022 |
| ›United Nations |
Science
| 100 Years of the Lawena Power Plant |
| Issued: 05.06.2023 |
| ›Liechtenstein |
| Julij Nardin - First Slovene Inventors with Patents |
| Issued: 26.05.2023 |
| ›Slovenia |
| Asteroid Day |
| Issued: 16.05.2023 |
| ›Luxembourg |
| Archaeological Treasure |
| Issued: 12.05.2023 |
| ›Bosnia and Herzegovina Mostar |
| Journey to the Moon |
| Issued: 21.04.2023 |
| ›Netherlands |
| Climate Action - Plastic Waste in the Sea |
| Issued: 20.04.2023 |
| ›Croatia |
Technology
| De Hollandsche Molen's 100th Anniversary |
| Issued: 15.05.2023 |
| ›Netherlands |
| Electric Assisted Bicycle |
| Issued: 13.03.2023 |
| ›France |
| Popular Culture - Playstation Heroes |
| Issued: 22.02.2023 |
| ›Croatia |
| The Radar Station at Sornfelli |
| Issued: 20.02.2023 |
| ›Faroe Islands |
| The Standards Institution of Israel Centennial |
| Issued: 07.02.2023 |
| ›Israel |
| Israel Electric Corporation Centennial |
| Issued: 07.02.2023 |
| ›Israel |