USSR
Now showing: USSR - Postage stamps (1923 - 1991) - 1 stamps.
1978
General Assembly of the International Union for Conservation
12. September WM: None Sheetsize: 50 Perforation: 11½
![[General Assembly of the International Union for Conservation, type FMK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/FMK-s.jpg)
