1976 Sc 4579-4583. International cooperation in space. Scott 4489-4493

1976. International cooperation in space.
Catalogs: Scott 4489-4493, Standard Collection 4579-4583, Michel 4530-4534, Yt 4298-4302.
Issued on: 1976-11-15.
Perforation: comb 11½
Printing: Photogravure
Size: 28 x 40 mm
Colors: Multicolor
Face value: 6 Russian kopek; 10 Russian kopek; 12 Russian kopek; 16 Russian kopek; 20 Russian kopek
Print run: 6,500,000; 5,500,000; 5,200,000; 4,700,000; 4,200,000