Science Stamp Thematic on WOPA+
Science
| 50 Years of First Moon Landing |
| Issued: 03.06.2019 |
| ›Liechtenstein |
| The 100th Anniversary of Einstein's Eclipse |
| Issued: 16.05.2019 |
| ›Portugal |
| Augustin Fresnel |
| Issued: 06.05.2019 |
| ›France |
| The International Labour Organisation |
| Issued: 03.05.2019 |
| ›Portugal |
| 50 Years Manned Moon Landing |
| Issued: 02.05.2019 |
| ›Switzerland |
| New Zealand Space Pioneers |
| Issued: 01.05.2019 |
| ›New Zealand |
| One Small Step |
| Issued: 29.04.2019 |
| ›Isle of Man |
| The Moon Landing 1969 |
| Issued: 29.04.2019 |
| ›Faroe Islands |
| The International Year of the Periodic Table of Chemical Elements |
| Issued: 12.04.2019 |
| ›Kyrgyzstan KEP |
| Kaplan Turbine - Viktor Kaplan |
| Issued: 30.03.2019 |
| ›Austria |
| Redefinition of SI Base Units |
| Issued: 22.03.2019 |
| ›Slovenia |
| Joint issue Slovenia-Slovakia - Sundial, Astronomical Clock |
| Issued: 22.03.2019 |
| ›Slovenia |
| World Water Day |
| Issued: 22.03.2019 |
| ›Slovenia |
| Winning Belgium - Belgium in Space |
| Issued: 18.03.2019 |
| ›Belgium |
| Centenary of the Ciesm |
| Issued: 15.03.2019 |
| ›Monaco |
| Aurora Borealis - Northern Lights |
| Issued: 08.03.2019 |
| ›Aland Islands |
| Science Oriented Youth |
| Issued: 05.03.2019 |
| ›Israel |
| Émilie du Châtelet |
| Issued: 21.01.2019 |
| ›France |
| Engineering - Panama Canal |
| Issued: 17.01.2019 |
| ›Spain |
| 2019 International Year of the Periodic Table |
| Issued: 17.01.2019 |
| ›Spain |
| Israeli Achievements - Robotics |
| Issued: 04.12.2018 |
| ›Israel |
| Environmental Protection |
| Issued: 09.11.2018 |
| ›Slovenia |
| Minerals and Rocks |
| Issued: 24.10.2018 |
| ›Croatia |
