1969 Sc 3743-3745 Space Exploration Scott 3667-3668, 3682

1969. Space Exploration.
Catalogs: Scott 3667-3668, 3682, Standard Collection 3743-3745, Mi 3694-3695, 3709, Yt 3553-3554, 3567.
Condition: MNHOG.
Issued on: November 25 – December 26, 1969.
Perforation: comb 12 x 11½.
Printing: Photogravure.
Size: 37 x 52 mm.
Colors: Multicolor.
Face value: 4 Russian kopek; 6 Russian kopek; 10 Russian kopek.
Quantity: 5,000,000; 4,000,000; 4,000,000.