Czechoslovakia
Now showing: Czechoslovakia - Postage stamps (1918 - 1992) - 1 stamps.
1968
The 6th International Slavonic Congress, Prague
7. August WM: None Design: K. Svolinský Engraving: L. Jirka Perforation: 11½
![[The 6th International Slavonic Congress, Prague, type AVG]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/AVG-s.jpg)
