1976 SC 4503 20th Anniversary of Joint Nuclear Research Institute Scott 4420

1976. 20th Anniversary of Joint Nuclear Research Institute.
Condition: MNHOG.
Catalog numbers: Scott 4420, Standard Collection 4503, Michel 4453, Yvert 4233.
Issued on: March 10, 1976.
Perforation: comb 11½.
Printing: Photogravure.
Size: 28 x 40 mm.
Colors: Multicolor.
Face value: 6 Russian kopek.
Quantity: 3,800,000.