1936 Sc 439A Pioneers disentangling kite-line from telegraph wires Scott 587

1936. Pioneer preventing damage of insulation.
Catalogs: Scott 587, Standard Collection 439A, Michel 546Cx.
Issued on: April, 1936.
Perforation: line13¾.
Printing: Photogravure.
Face value: 10 Russian kopek.