1953 Sc 1657 Young pioneers Scott 1688

1953. Young pioneers making a model.
Catalog numbers: Scott 1688, Standard Collection 1657, Mi 1691, Yt 1674.
Issued on: December 22, 1953.
Perforation: comb 12¼ x 11¾.
Printing: Lithography.
Colors: Multicolor.
Face value: 40 Russian kopek.
Quantity: 10,000,000.