1978 Sc 4754-4756 Soviet-Czech Space Flight Scott 4645-4647

1978. Soviet-Czech Space Flight.
Catalog numbers: Scott 4645-4647, Standard Collection 4754-4756, Michel 4704-4706, Yvert 4463-4465.
Condition: MNHOG.
Issued on: March 10, 1978.
Perforation: comb 12 x 12¼.
Printing: Offset lithography.
Size: 37 x 52 mm.
Colors: Multicolor.
Face value: 6 Russian kopek; 15 Russian kopek; 32 Russian kopek.
Quantity: 6,700,000; 5,400,000; 4,400,000.