USSR
Viser nu USSR - Post frimærker (1923 - 1991) - 1 frimærker.
1957
International Geophysical Year
4. juli VM: Ingen Arkstørrelse: 72 Design: E. Gundobin Perforeringer: 12 x 12¼
![[International Geophysical Year, type BIF]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/BIF-s.jpg)
