Feodor Petrovitch Tchoumakoff ( 1823 - 1911 ) was a Russian painter. Feodor Petrovitch Tchoumakoff s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2122.68 USD for Portrait of a woman, bust-length, in Greek costume in 2004 to 7389.89 USD for Studie av flickhuvud in 2007 , based on the size and medium of the artwork.