1962 Sc 2591. Start of the artificial satellites «Space»-3 and «Space»-4. Scott 2586

1962. Start of the artificial satellites «Space»-3 and «Space»-4.
Catalog numbers: Scott 2586, Standard Collection 2591, Michel 2595, Yvert 2515.
Perforation: comb 12½ x 12.
Color: Black, violet and blue.
Printing: Offset lithography.

Print run: 3,500,000.