Czechoslovakia
Now showing: Czechoslovakia - Postage stamps (1918 - 1992) - 1 stamps.
1976
European Security and Co-operation Conference, Helsinki
30. July WM: None Design: V. Hložník Perforation: 11¾
![[European Security and Co-operation Conference, Helsinki, type ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/2332-b.jpg)
