USSR
Now showing: USSR - Postage stamps (1923 - 1991) - 1 stamps.
1969
The 50th Anniversary of Soviet Inventions
20. June WM: None Sheetsize: 50 Design: N. Babin and G. Gausman Perforation: 11½
![[The 50th Anniversary of Soviet Inventions, type DUR]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/DUR-s.jpg)
