The National Philatelic Exhibition in Sieradz commemorating the 60th Anniversary of the October Revolution and the 20th Anniversary of Space Conquest 1977
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1977
The National Philatelic Exhibition in Sieradz commemorating the 60th Anniversary of the October Revolution and the 20th Anniversary of Space Conquest
1. October WM: None Sheetsize: 15 / 3 (blok) Design: Z. Stasik Perforation: 11:11½
![[The National Philatelic Exhibition in Sieradz commemorating the 60th Anniversary of the October Revolution and the 20th Anniversary of Space Conquest, type CBK]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/CBK-s.jpg)
