Poland
Now showing: Poland - Postage stamps (1860 - 2024) - 1 stamps.
1978
International Congress for Parasitologists
19. August WM: None Sheetsize: 30 Design: T. Konarski Perforation: 11:11½
![[International Congress for Parasitologists, type CDB]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/CDB-s.jpg)
![[International Congress for Parasitologists, type CDC]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/CDC-s.jpg)