1979 Sc 4879 Research of Venus Scott 4740

1979. Research of Venus.
Catalogs: Scott 4740, Standard Collection 4879, Michel 4827, Yt 4583.
Issued on: March 16, 1979.
Perforation: comb 11½.
Printing: Photogravure.
Size: 28 x 40 mm.
Colors: Multicolor.
Face value: 10 Russian kopek.
Quantity: 5,100,000.