1972 Sc 4051 50th anniversary of the Yakut autonomous SSR Scott 3819

1972. 50th anniversary of the Yakut autonomous SSR.
Catalogs: Scott 3819, Standard Collection 4051, Mi 4001, Yt 3829.
Condition: MNHOG.
Issued on: April 20, 1972.
Perforation: comb 12 x 12½.
Printing: Recess.
Size: 37 x 52 mm.
Colors: Multicolor.
Face value: 4 Russian kopek.
Quantity: 3,600,000.