URSS
Prezentat acum: URSS - Timbre poştale (1923 - 1991) - 1 timbre.
1966
Soviet Scientists
30. Martie WM: Niciunul Marimea foii: 25 Design: S. Sokolov and B. Trifonov Perforare: 12¼ x 12
![[Soviet Scientists, Tip DDX]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DDX-s.jpg)
![[Soviet Scientists, Tip DDY]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DDY-s.jpg)
![[Soviet Scientists, Tip DDZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DDZ-s.jpg)
