1931 Sc 273 Airship Over Moscow Kremlin Scott C17

1931. Airship Over Moscow Kremlin.
Catalog numbers: Scott C17, Standard Collection 273, Michel 399C.
Issued on: May 15, 1931.
Perforation: line 12¼.
Printing: Typography.
Colors: Multicolor.
Face value: 20 Russian kopek.