1963 Sc 2719-2722. Children of the Soviet country. Scott 2697-2700

1963. Children of the Soviet country.
Catalog numbers: Scott 2697-2700, Standard Collection 2719-2722, Michel 2712-2715, Yvert 2628-2631.
Perforation: comb 11½.
Color: Brown, gray, dark-pink. Dark-brown and gray. Red-brown, black-brown and light brownish-yellow. Black and pale-green.
Printing: Photogravure.

Print run: 3,000,000; 3,000,000; 3,000,000; 3,000,000.