International Philatelic Exhibition Interphil '76 in Philadephia, United States 1976
Now showing: Poland - Postage stamps - 1976 - International Philatelic Exhibition Interphil '76 in Philadephia, United States - 1 stamps.
1976
International Philatelic Exhibition Interphil '76 in Philadephia, United States
20. May WM: None Sheetsize: 30 Design: T. Michaluk Engraving: PWPW. Perforation: 11¾:11½
![[International Philatelic Exhibition Interphil '76 in Philadephia, United States, type BYI]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/BYI-s.jpg)
