NSVL
Praegu kuvatakse: NSVL - postmargid (1923 - 1991) - 1 margid.
1969
The 3rd International Congress of Protozoologists
10. juuni WM: mitte ükski lehe suurus: 50 Disain: B. Trifonov perforatsioon: 11½
![[The 3rd International Congress of Protozoologists, Tüüp DUL]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DUL-s.jpg)
