The 25th Anniversary of Czechoslovak Academy of Science 1977
Now showing: Czechoslovakia - Postage stamps - 1977 - The 25th Anniversary of Czechoslovak Academy of Science - 1 stamps.
1977
The 25th Anniversary of Czechoslovak Academy of Science
17. November WM: None Design: K. Svolinský Engraving: L. Jirka Perforation: 11¼ x 11½
![[The 25th Anniversary of Czechoslovak Academy of Science, type BSM]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-stamps/BSM-s.jpg)
