Viser nu Polen - Forfalden-porto frimærker (1919 - 1998) - 4 frimærker.
1920
Numeral Stamps - Thin Laid Paper
maj VM: Ingen Arkstørrelse: 100 Design: prof. Skoczylas Perforeringer: 9-11½
![[Numeral Stamps - Thin Laid Paper, type C18]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-due-stamps/C18-s.jpg)
![[Numeral Stamps - Thin Laid Paper, type C19]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-due-stamps/C19-s.jpg)
![[Numeral Stamps - Thin Laid Paper, type C20]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-due-stamps/C20-s.jpg)
![[Numeral Stamps - Thin Laid Paper, type C21]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-due-stamps/C21-s.jpg)
