Otto Sohn Rethel ( 1877 - 1949 ) was a German painter. Otto Sohn Rethel s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 534.19 USD for Porträt eines kleinen Mädchens am Tisch sitzend in 2004 to 1488.76 USD for Bub mit Mütze auf einem Stuhl, vor blauer Tapete in 2011 , based on the size and medium of the artwork.