1931 Sc 271A Airship in Flight Over Factory Scott C20

1931. Airship in Flight Over Factory.
Catalog numbers: Scott C20, Standard Collection 271A, Michel 397A.
Issued on: May 15, 1931.
Perforation: comb 12 x 12¼.
Printing: Typography.
Colors: Multicolor.
Face value: 10 Russian kopek.