1958 Sc 2090A International Geophysical Year Scott 2091

1958. International Geophysical Year.
Catalog numbers: Scott 2091, Standard Collection 2090A, Michel 2104A.
Issued on: July 29, 1958.
Perforation: comb 12 x 12¼.
Printing: Photogravure.
Colors: Multicolor.
Face value: 40 Russian kopek.
Quantity: 1,500,000.