Nikolai Nikolayevich Volkov (Russian, 1897-1974) oil painting on cardboard, Kislovodsk. Framed. The original auction labels with the description, number and barcode on verso. The sheet with detailed information about the artist on the back: Volkov Nikolai Nikolaevich is a famous artist, scientist psychologist, one of the most talented art theorists, he knew how to harmoniously combine art and science. Provenance: Shapiro Auctions New York: Russian plus International Fine Art, November 16, 2013, lot # 637.