Rudolf Wacker ( 1893 - 1939 ) was an Austrian painter. Rudolf Wacker s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2322.06 USD for Weiblicher Akt (liegend) in 2002 to 82624.14 USD for Stilleben mit Engel, Flaschenkürbis und Kasperlbild. 1925. in 2005 , based on the size and medium of the artwork.