1929 Sc 245-248 Publicity for greater industrial production Scott 427-430

1929. Publicity for greater industrial production.
Catalogs: Scott 427-430, Standard Collection 245-248.
Issued on: 1929.
Perforation: comb12 x 12¼; comb12¼ x 12.
Printing: Typography, Autotype.
Watermark: 11a,b.
Face value: 5 Russian kopek; 10 Russian kopek; 20 Russian kopek; 28 Russian kopek.