Thomas Hopker ( 1936 - ) is a German painter. Thomas Hopker s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1693.49 USD for Muhammad Ali Chicago River Bridge in 2004 to 5067.18 USD for NORWEGIAN TOURISTS NEAR GIZA PYRAMIDS, EGYPT in 2005 , based on the size and medium of the artwork.