The 30th Anniversary of Invention of Radio by A. S. Popov 1925
Now showing: USSR - Postage stamps - 1925 - The 30th Anniversary of Invention of Radio by A. S. Popov - 2 stamps.
Now showing: USSR - Postage stamps - 1925 - The 30th Anniversary of Invention of Radio by A. S. Popov - 2 stamps.