Technology Stamp Thematic on WOPA+
Technology
| Centenary of Riga State Technical School |
| Issued: 10.01.2020 |
| ›Latvia |
| World Congress on Information Technology in Yerevan |
| Issued: 07.10.2019 |
| ›Armenia |
| ITU Telecom World |
| Issued: 02.09.2019 |
| ›Hungary |
| British Engineering |
| Issued: 02.05.2019 |
| ›Great Britain |
| Sustainable Energy |
| Issued: 30.11.2018 |
| ›Aruba |
| International Telecommunication Union Conference |
| Issued: 21.11.2018 |
| ›Kyrgyzstan KP |
| Tallinn University of Technology 100 |
| Issued: 17.09.2018 |
| ›Estonia |
| Latvia`s first satelite Venta-1 |
| Issued: 09.10.2017 |
| ›Latvia |
| Portuguese Textile Industry |
| Issued: 17.06.2017 |
| ›Portugal |
| Károly Simonyi was born 100 years ago |
| Issued: 05.10.2016 |
| ›Hungary |
| 55th Anniversary of the First Space Flight |
| Issued: 14.05.2016 |
| ›Kyrgyzstan KP |
| Croatian Inventions |
| Issued: 27.04.2016 |
| ›Croatia |
| Centenary of the Republic of Estonia - Innovation |
| Issued: 17.03.2016 |
| ›Estonia |
| 150 years of the International Telecommunication Union |
| Issued: 12.10.2015 |
| ›Hungary |
| 50th Anniversary of the First Spacewalks |
| Issued: 02.07.2015 |
| ›Kyrgyzstan KEP |
| 150th Anniv. of the International Telecommunication Union (ITU) |
| Issued: 08.05.2015 |
| ›Croatia |
| 25 Years of the AICEP |
| Issued: 27.04.2015 |
| ›Portugal |
| 25th Anniversary, Romanian Intelligence Service |
| Issued: 23.03.2015 |
| ›Romania |
| 3rd World Conference on Disaster Risk Reduction |
| Issued: 19.02.2015 |
| ›Hungary |
| Royal University Library & Royal Land Archives |
| Issued: 01.12.2014 |
| ›Croatia |
| Ábrahám Ganz was born 200 years ago |
| Issued: 06.11.2014 |
| ›Hungary |
| International Year of Crystallography |
| Issued: 21.07.2014 |
| ›Portugal |