Dennis A Oppenheim ( 1938 - 2011 ) was an American painter. Dennis A Oppenheim s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 216.22 USD for MINDTWIST: A PORTFOLIO OF BURNED OUT THOUGHTS in 2003 to 18932.22 USD for Two stage transfer drawing in 2015 , based on the size and medium of the artwork.