1974 Sc 4308 80th Birth Anniversary of I.S.Isakov Scott 4204

1974. 80th Birth Anniversary of I.S.Isakov.
Catalogs: Scott 4204, Standard Collection 4308, Mi 4258, Yt 4056.
Condition: MNHOG.
Issued on: July 18, 1974.
Perforation: comb 12¼ x 12.
Printing: Recess.
Size: 28 x 40 mm.
Colors: Black blue.
Face value: 4 Russian kopek.
Quantity: 3,500,000.