1959 Sc 2189 Charles Darwin Scott 2166

1959. Charles Darwin.
Catalog numbers: Sc 2189, Scott 2166, Michel SU 2195C.
Issued on: February 5, 1959.
Perforation: comb 12¼ x 12.
Printing: Photogravure.
Colors: Multicolor.
Face value: 40 Russian kopek.
Quantity: 1,000,000.