Dieter Schwerdtle ( 1952 - ) is a German painter. Dieter Schwerdtle s works have been put up for auction numerous times, with realized prices varying from 117.77 USD for Joseph Beuys. Pflanzung der ersten von 7000 Eichen in 2004 to 550.79 USD for JOSEPH BEUYS in 2005 , based on the size and medium of the artwork.