USSR
Now showing: USSR - Postage stamps (1923 - 1991) - 1 stamps.
1981
The 70th Birth Anniversary of M.V.Keldysh
10. February WM: None Sheetsize: 50 Design: G. Komlev Perforation: 11½ x 12
![[The 70th Birth Anniversary of M.V.Keldysh, type FWN]](https://www.stampworld.com/media/catalogue/USSR/Postage-stamps/FWN-s.jpg)
