1938 Sc 516 Rescue of “North Pole-1” Station Scott 644

1938. Rescue of “North Pole-1” Station.
Catalog numbers: Scott 644, Standard Collection 516, Michel 615.
Issued on: June 21, 1938.
Perforation: comb 11¾ x 12¼.
Printing: Typography.
Colors: Multicolor.
Face value: 20 Russian kopek.