1971 SC 3923 23rd International Bee-keeping Congress Scott 3843

1971. 23rd International Bee-keeping Congress.
Catalogs: Scott 3843, Standard Collection 3923, Mi 3870, Yt 3711.
Condition: MNHOG.
Issued on: April 1, 1971.
Perforation: comb 11½.
Printing: Photogravure.
Size: 28 x 40 mm.
Colors: Multicolor.
Face value: 6 Russian kopek.
Quantity: 3,500,000.