Poland
Now showing: Poland - Postage stamps (1860 - 2024) - 1 stamps.
1973
Introduction of Postal Codes
5. May WM: None Sheetsize: 50 Design: H. Chyliński Engraving: PWPW. Perforation: 11:11½
![[Introduction of Postal Codes, type BQS]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/BQS-s.jpg)