1979 Sc 4939-4940 175 Days in Space Scott 4782-4783

1979. 175 Days in Space.
Catalogs: Scott 4782-4783, Standard Collection 4939-4940, Michel 4889-4890, Yt 4632-4633.
Issued on: October 10, 1979.
Perforation: frame 11¾ x 11½.
Printing: Photogravure.
Size: 55 x 26 mm; 55 x 26 mm.
Colors: Multicolor.
Face value: 2*15 Russian kopek.
Print run: 5,200,000.