1973 Sc 4157 150th Birth Anniversary of A.N.Ostrovsky Scott 4069

1973. 150th Birth Anniversary of A.N.Ostrovsky.
Catalogs: Scott 4069, Standard Collection 4157, Mi 4106, Yt 3926.
Condition: MNHOG.
Issued on: April 5, 1973.
Perforation: comb 12 x 12½.
Printing: Offset lithography.
Size: 37 x 52 mm.
Colors: Multicolor.
Face value: 4 Russian kopek.
Quantity: 4,900,000.