1963 Sc 2802-2805. Formation flying by «East-5» and «East-6» spaceships. Scott 2748-2749, 2753, 2753imp

1963. Formation flying by «East-5» and «East-6» spaceships.
Catalog numbers: Scott 2748-2749, 2753, 2753imp, Standard Collection 2802-2805, Michel 2782A-2784A, 2784B, Yvert 2691-2693, 2693a.
Perforation: comb 12 x 12½, imperforated.
Color: Multicolor.
Printing: Offset lithography.
Print run: 5,000,000; 5,000,000; 2,500,000; 500,000.