Helderse Postzegelhandel : Stamps for sale - USSR
Now showing: USSR - Postage stamps (1923 - 1991) - 2 stamps.
1. October WM: 1 Sheetsize: 100 Design: N. Kachura Engraving: photo Perforation: 13¼
![[The 30th Anniversary of Invention of Radio by A. S. Popov, type N]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/N-s.jpg)
1. October WM: 1 Sheetsize: 100 Design: N. Kachura Engraving: photo Perforation: 13¼
![[The 30th Anniversary of Invention of Radio by A. S. Popov, type N1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/USSR/Postage-stamps/N1-s.jpg)
