Hartmut Boehm ( 1938 - ) is a German painter. Hartmut Boehm s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 33.16 USD for System I in 2005 to 7809.54 USD for Progression gegen Unendlich mit 22.5o in 2015 , based on the size and medium of the artwork.