Birth Centenry of A.M.Lyapunov 1957
Now showing: USSR - Postage stamps - 1957 - Birth Centenry of A.M.Lyapunov - 1 stamps.
1957
Birth Centenry of A.M.Lyapunov
20. June WM: None Sheetsize: 200 Design: E. Bulanova Perforation: 12¼