Now showing: Poland - Postage-due stamps (1920 - 1929) - 4 stamps.
1920
Numeral Stamps - Thin Laid Paper
May WM: None Sheetsize: 100 Design: prof. Skoczylas Perforation: 9-11½
![[Numeral Stamps - Thin Laid Paper, type C18]](https://www.stampworld.com/media/catalogue/Poland/Postage-due-stamps/C18-s.jpg)
![[Numeral Stamps - Thin Laid Paper, type C19]](https://www.stampworld.com/media/catalogue/Poland/Postage-due-stamps/C19-s.jpg)
![[Numeral Stamps - Thin Laid Paper, type C20]](https://www.stampworld.com/media/catalogue/Poland/Postage-due-stamps/C20-s.jpg)
![[Numeral Stamps - Thin Laid Paper, type C21]](https://www.stampworld.com/media/catalogue/Poland/Postage-due-stamps/C21-s.jpg)
