1951 Sc 1552(2) K.E. Tsiolkovsky Scott 1582

1951. K.E. Tsiolkovsky.
Raster: Horizontal.
Catalogs: Scott 1582, Standard Collection 1552(2), Michel 1577.
Issued on: 1951.
Perforation: line 12½.
Printing: Photogravure.
Face value: 40 Russian kopek.