Sovjetunionen
Visar nu: Sovjetunionen - Postfrimärken (1923 - 1991) - 1 frimärken.
1967
International Scientific Cooperation
10. mars WM: Inga storlek på arket: 50 Design: V. Pimenov Perforering: 11½
![[International Scientific Cooperation, Typ DIY]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DIY-s.jpg)
![[International Scientific Cooperation, Typ DIZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DIZ-s.jpg)
