Erik Boeré Philatelie : Stamps for sale - USSR (page 116/116)
Now showing: USSR - Postage stamps (1923 - 1991) - 5757 stamps.
11. October WM: None Sheetsize: 50 Design: B. Ilyukhin Perforation: 11½
29. October WM: None Sheetsize: 50 Design: A. Tarasov Perforation: 11½
19. November WM: None Sheetsize: 30 Design: A. Pletnev Perforation: 12 x 11½