Hugo Knorr ( 1834 - 1904 ) was a German painter. Hugo Knorr s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 29 USD for A large cabin is set into the lush green hills and surrounded by tall pine trees in 2004 to 4074.02 USD for In Karlsruhe in 2007 , based on the size and medium of the artwork.