Czechoslovakia
Now showing: Czechoslovakia - Postage stamps (1918 - 1992) - 1 stamps.
1964
The 150th Anniversary of the Silesian Museum, Opava
20. June WM: None Design: Šváb Jaroslav Engraving: Housa Bedřich Perforation: 11½
![[The 150th Anniversary of the Silesian Museum, Opava, type AIO]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/AIO-s.jpg)
