* TKACHEV, SERGEI and TKACHEV, ALEKSEI (B. 1922 and B. 1925) Spring Fishing Season on the Caspian Sea , signed, also further signed, titled in Cyrillic, numbered "5" and dated 1960 on the reverse. Oil on cardboard, 73.5 by 109 cm. Provenance: Acquired directly from the artists by the present owner in Moscow, c. 2007. Private collection, USA. Authenticity certificate from the artists.