1975 Sc 4393 Cosmonautics Day Scott 4310

1975. Cosmonautics Day.
Catalogs: Scott 4310, Standard Collection 4393, Michel 4343, Yt 4131.
Issued on: March 28, 1975.
Perforation: comb 12 x 11½.
Printing: Photogravure.
Size: 55 x 26 mm.
Colors: Multicolor.
Face value: 10 Russian kopek.
Quantity: 5,400,000.