NSVL
Praegu kuvatakse: NSVL - postmargid (1923 - 1991) - 1 margid.
1978
General Assembly of the International Union for Conservation
12. september WM: mitte ükski lehe suurus: 50 perforatsioon: 11½
![[General Assembly of the International Union for Conservation, Tüüp FMK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/FMK-s.jpg)
