1971 SC 3999-4004 Diamond Fund of the USSR Scott 3917-3922

1971. Diamond Fund of the USSR.
Catalogs: Scott 3917-3922, Standard Collection 3999-4004, Mi 3950-3955, Yt 3785-3790.
Condition: MNHOG.
Issued on: August 8, 1971.
Perforation: comb 11½.
Printing: Offset lithography.
Size: 37 x 37 mm.
Colors: Multicolor.
Face value: 10 Russian kopek; 10 Russian kopek; 10 Russian kopek; 20 Russian kopek; 20 Russian kopek; 30 Russian kopek.
Quantity: 5,000,000; 4,000,000; 5,000,000; 4,000,000; 4,000,000; 5,000,000.