USSR, 1960, 40 kop. 12 (1/2) x 12. brown and orange

Catalogues:
CFA "Souzpechat": 2503
Michel: 2427
Scott: 2403
Stanley Gibbons: 2516
Yvert et Tellier: 2360

Artists: Hibbard Frederick C.

Plots: Twain Mark,  «Huckleberry Finn»,  «The Adventures of Tom Sawyer»