1968 SC 3594 150th Birth Anniversary of Ivan Turgenev Scott 3523

1968. 150th Birth Anniversary of Ivan Turgenev.
Catalog numbers: Scott 3523, Standard Collection 3594, Michel 3542, Yvert 3414.
Condition: MNHOG.
Issued on: October 10, 1968.
Perforation: comb 12 x 12½.
Printing: Recess.
Size: 30 x 42 mm.
Colors: Black blue green.
Face value: 4 Russian kopek.
Quantity: 3,500,000.