USSR
Viser nu USSR - Post frimærker (1923 - 1991) - 1 frimærker.
1986
UNESCO "Man and Biosphere" Programme
19. maj VM: Ingen Arkstørrelse: 50 Design: Yury Artsimenev Perforeringer: 11½
![[UNESCO "Man and Biosphere" Programme, type GSN]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/GSN-s.jpg)
