1984 Sc 5428-5430 50th Anniversary of Chelyuskin’s Voyage Scott 5246-5248

1984. 50th Anniversary of Chelyuskin’s Voyage.
Catalogs: Scott 5246-5248, Standard Collection 5428-5430, Michel 5376-5378, Yt 5092-5094.
Issued on: April 13, 1984.
Perforation: comb 11½ x 12.
Printing: Photogravure and Recess.
Size: 52 x 37 mm.
Colors: Multicolor.
Face value: 6 Russian kopek; 15 Russian kopek; 45 Russian kopek.
Quantity: 4,500,000; 3,200,000; 3,000,000.