Science Stamp Thematic on WOPA+
Science
| 100th Anniversary of E.Gudriniece |
| Issued: 18.09.2020 |
| ›Latvia |
| Research, Innovation and Technology |
| Issued: 17.09.2020 |
| ›Norway |
| PET Recycling |
| Issued: 07.09.2020 |
| ›Liechtenstein |
| COVID-19 (New York) |
| Issued: 11.08.2020 |
| ›United Nations |
| COVID-19 (Geneva) |
| Issued: 11.08.2020 |
| ›United Nations |
| COVID-19 (Vienna) |
| Issued: 11.08.2020 |
| ›United Nations |
| Women In Science - Maria Andresa Casamayor De La Coma |
| Issued: 29.06.2020 |
| ›Spain |
| Institute Of Speleology “Emil Racovita” A Century Of Research |
| Issued: 18.06.2020 |
| ›Romania |
| Medical And Industrial Tubing |
| Issued: 05.06.2020 |
| ›Aland Islands |
| 40th Anniv of Eradication of Smallpox |
| Issued: 08.05.2020 |
| ›United Nations |
| Microscopic Art |
| Issued: 07.05.2020 |
| ›Switzerland |
| Centenary of the Icelandic Met Office |
| Issued: 07.05.2020 |
| ›Iceland |
| The Hungarian Meteorological Service 150 Years Old |
| Issued: 04.05.2020 |
| ›Hungary |
| 2020 World Water Day |
| Issued: 22.03.2020 |
| ›Bosnia and Herzegovina Mostar |
| One Giant Leap - Exploring the Moon and Space |
| Issued: 26.02.2020 |
| ›Isle of Man |
| Re-Print of the Purple Effigie of H.S.H Prince Albert II |
| Issued: 06.01.2020 |
| ›Monaco |
| Semiprecious Stones |
| Issued: 21.12.2019 |
| ›Kyrgyzstan KP |
| Weizmann Institute of Science 70th Anniversary |
| Issued: 26.11.2019 |
| ›Israel |
| Slovene Female Scientists - Angela Piskernik |
| Issued: 08.11.2019 |
| ›Slovenia |
| Post & Go Moon Landings |
| Issued: 04.09.2019 |
| ›Gibraltar |
| International Year of the Periodic Table |
| Issued: 24.07.2019 |
| ›Portugal |
| 50th Anniversary of the First Moon Landing |
| Issued: 20.07.2019 |
| ›Austria |
| Man on the Moon 50th Anniversary |
| Issued: 19.07.2019 |
| ›Jersey |