The 6th Polish Congress for Technicians 1971
Now showing: Poland - Postage stamps - 1971 - The 6th Polish Congress for Technicians - 1 stamps.
1971
The 6th Polish Congress for Technicians
2. September WM: None Sheetsize: 30 Design: Henryk Chyliński Engraving: PWPW. Perforation: 11½:11
![[The 6th Polish Congress for Technicians, type BLD]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/BLD-s.jpg)
