1936 Sc 435 Pioneers Attaching Post-box Scott 583

1936. Pioneers Attaching Post-box.
Condition: MNHOG, Block of 4 with margin.
Catalogs: Scott 583, Standard Collection 435.
Issued on: April 17, 1936.
Perforation: line 11.
Printing: Photogravure.
Face value: 4*1 Russian kopek.