USSR
Viser nå: USSR - Postfrimerker (1923 - 1991) - 1 frimerker.
1963
Academy of Sciences Members
28. February VM: Ingen Arkstørrelse: 50 Design: S. Sokolov and N. Kruglov Perforering: 11½ x 12
![[Academy of Sciences Members, type CLS]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/CLS-s.jpg)
![[Academy of Sciences Members, type CLT]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/CLT-s.jpg)
