Czechoslovakia
Now showing: Czechoslovakia - Postage stamps (1918 - 1992) - 1 stamps.
1964
The 4th European Cardiological Congress, Prague
10. červenec WM: Žádný Design: Istler J. Engraving: Mráček Jan Perforation: 11½
![[The 4th European Cardiological Congress, Prague, type AIS]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/AIS-s.jpg)
