Technical and Scientific Knowledge Society Congress 1963
Now showing: Czechoslovakia - Postage stamps - 1963 - Technical and Scientific Knowledge Society Congress - 1 stamps.
1963
Technical and Scientific Knowledge Society Congress
12. prosinec WM: Žádný Sheetsize: 100 Design: J. Lukavský Engraving: J. Švengsbír Perforation: 11½ x 12
![[Technical and Scientific Knowledge Society Congress, type AHC]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-stamps/AHC-s.jpg)
