Stamps Category Science

USSR-Soviet Union-Ship "Otto Mikhailsomov" - Scientific Ascent Fleet of the USSR.
Herman Cudris Castañeda
USSR-Soviet Union-Ship "Otto Schmidt" - Scientific Ascent Fleet of the USSR.
Herman Cudris Castañeda
USSR-Soviet Union-Ship "Akadémik Nistislav Keldysh" - Scientific Promotion Fleet of the USSR.
Herman Cudris Castañeda
USSR-Soviet Union-Ship "Akademik Sergei Korolev" - Scientific Ascent Fleet of the USSR.
Herman Cudris Castañeda
Zeppelin Aircraft-Zeppelin JZ 120 Bodensee- Airship - Naposta 81 Stamp Exhibition, Stuttart (A
Herman Cudris Castañeda
USSR-Soviet Union - Soyuz-24 - Special Mission Commemorative Stamp- Space Achievements-Astro
Herman Cudris Castañeda
health care
Nelida Fernandez Besada
Cooperative Space Program - Mongolia
Nelida Fernandez Besada
Cooperative Space Program - Poland
Nelida Fernandez Besada
Space collaboration with France
Pedro Gruenholz