SERGEI PETROVICH TKACHEV ( 1922 - ) is a Russian painter. SERGEI PETROVICH TKACHEV s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1875 USD for AN EVENING ON THE LAKE in 2016 to 4907.68 USD for At the Old School in 2016 , based on the size and medium of the artwork.