International Congress for Parasitologists 1978
Sedaj prikazano: Poljska - Poštne znamke - 1978 - International Congress for Parasitologists - 2 znamke.
1978
International Congress for Parasitologists
19. avgust WM: Nič Velikost polja: 30 Oblika: T. Konarski Perforacija: 11:11½
![[International Congress for Parasitologists, tip CDB]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/CDB-s.jpg)
![[International Congress for Parasitologists, tip CDC]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/CDC-s.jpg)
