Karl Gebhardt ( 1860 - 1917 ) was a German painter. Karl Gebhardt s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 158.25 USD for Rattenberg - Gewölberaum mit Ofen in 2004 to 4218.36 USD for Saying Grace in 2018 , based on the size and medium of the artwork.