1963 Sc 2783-2785. Formation flying by «East-5» and «East-6» spaceships. Scott 2750imp-2752imp

1963. Formation flying by «East-5» and «East-6» spaceships.
Catalog numbers: Scott 2750imp-2752imp, Standard Collection 2783-2785, Michel 2769B-2771B.
Perforation: Imperforated.
Color: Brown and violet-lilac. Lilac-brown and bluish-green. Blue and red.
Printing: Photogravure.
Print run: 500,000; 500,000; 500,000.