Helderse Postzegelhandel : Stamps for sale - Czechoslovakia
Now showing: Czechoslovakia - Postage stamps (1918 - 1992) - 2 stamps.
10. September WM: None Engraving: J. Švengsbír Perforation: 14
10. September WM: None Engraving: J. Švengsbír Perforation: 14
![[Prague International Philatelic Exhibition, type NR]](https://swmedia-4cd6.kxcdn.com/media/market/1226/9875057-s.jpg)