Rudolf Riester ( 1904 - 1999 ) was a German painter. Rudolf Riester s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 418.52 USD for People in 2004 to 819.3 USD for Maler an der Staffelei, daneben eine Frau mit zwei Kindern, ihm über die Schulter blickend in 2015 , based on the size and medium of the artwork.