1966 Sc 3287-3288 50th Anniversary of Barguzin Nature Reserve Scott 3218-3219

1966. 50th Anniversary of Barguzin Nature Reserve.
Catalog numbers: Scott 3218-3219, Standard Collection 3287-3288, Michel 3233-3234, Yvert 3115-3116.
Condition: MNHOG.
Issued on: June 25, 1966.
Perforation: comb 12½ x 12.
Printing: Photogravure.
Size: 84 x 42 mm.
Colors: Black, grey blue; black, grey lilac.
Face value: 4 Russian kopek; 6 Russian kopek.
Quantity: 4,000,000; 4,000,000.