Erik Boeré Philatelie : Stamps for sale - Czechoslovakia
Now showing: Czechoslovakia - Postage stamps (1918 - 1992) - 2 stamps.
6. March WM: None Design: F. Hudeček Perforation: 11¾ x 11¼
![[Space Research, type ZZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/ZZ-s.jpg)
6. March WM: None Design: F. Hudeček Perforation: 11¾ x 11¼
![[Space Research, type ZZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/ZZ-s.jpg)