Karl Hagenauer ( 1898 - 1956 ) was an Austrian painter. Karl Hagenauer s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 336.25 USD for A rock goat in 2005 to 4959.26 USD for Deux Panthères noires sur les branches in 2011 , based on the size and medium of the artwork.