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 |
| Europa 2009 'Astronomy' |
| Issued: 01.06.2009 |
| ›Gibraltar |
| Europa 2009 - Astronomy |
| Issued: 12.05.2009 |
| ›Luxembourg |
| Europa 2009 |
| Issued: 09.05.2009 |
| ›Malta |
| EUROPA 2009 – Astronomy |
| Issued: 06.05.2009 |
| ›Romania |
Science
| Coronavirus |
| Issued: 30.10.2020 |
| ›Austria |
| 100th Anniversary of E.Gudriniece |
| Issued: 18.09.2020 |
| ›Latvia |
| Research, Innovation and Technology |
| Issued: 17.09.2020 |
| ›Norway |
| World Congress Of Pharmacy And Pharmaceutical Sciences - Seville 2021 |
| Issued: 13.09.2020 |
| ›Spain |
| PET Recycling |
| Issued: 07.09.2020 |
| ›Liechtenstein |
Technology
| (3 Offices) UN Crypto Stamps |
| Issued: 24.11.2020 |
| ›United Nations |
| (New York) UN Crypto Stamps |
| Issued: 24.11.2020 |
| ›United Nations |
| (Geneva) UN Crypto Stamps |
| Issued: 24.11.2020 |
| ›United Nations |
| (Vienna) UN Crypto Stamps |
| Issued: 24.11.2020 |
| ›United Nations |
| Level Well in Tesanovci |
| Issued: 25.09.2020 |
| ›Slovenia |
| Centenary of the Alternating Current Electricity Supply in Maribor |
| Issued: 25.09.2020 |
| ›Slovenia |