USSR
Viser nu USSR - Post frimærker (1923 - 1991) - 1 frimærker.
1966
Soviet Scientists
30. marts VM: Ingen Arkstørrelse: 25 Design: S. Sokolov and B. Trifonov Perforeringer: 12¼ x 12
![[Soviet Scientists, type DDX]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DDX-s.jpg)
![[Soviet Scientists, type DDY]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DDY-s.jpg)
![[Soviet Scientists, type DDZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DDZ-s.jpg)
