1960 Sc 2409-2416. Flora of the USSR. Scott 2408-2415

1960. Flora of the USSR.
Catalog numbers: Scott 2408-2415, Standard Collection 2409-2416, Michel 2418-2425, Yvert 2351-2358.
Perforation: Comb perf. 12:12½.

Colors: Multi-color.
Printing: Offset. Comb perf.

Print run: 2,500,000; 2,900,000; 2,900,000; 2,500,000; 2,300,000; 1,800,000; 2,300,000; 1,800,000.