1927 Sc O216 Black 8K surcharge on 1926 7K “Esperanto” Scott 356

1927. Black 8K surcharge on 1926 7K “Esperanto”.
Catalog numbers: Scott 356, Standard Collection O216, Michel 338.
Issued on: December, 1927.
Perforation: comb12 x 12½.
Printing: Lithography.
Colors: Multicolor.
Face value: 8 Russian kopek.
Quantity: 200,000.