Birth Centenry of A.M.Lyapunov 1957
Viser nå: USSR - Postfrimerker - 1957 - Birth Centenry of A.M.Lyapunov - 1 frimerker.
1957
Birth Centenry of A.M.Lyapunov
20. June VM: Ingen Arkstørrelse: 200 Design: E. Bulanova Perforering: 12¼
![[Birth Centenry of A.M.Lyapunov, type BHZ]](https://www.stampworld.com/media/catalogue/USSR/Postage-stamps/BHZ-s.jpg)
