Carl Nonn ( 1876 - 1949 ) was a German painter. Carl Nonn s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 649.35 USD for Nonnenwerth in 2004 to 6745.57 USD for Rheinische Kirmes Beuel: a circus along the river Rhine in 2011 , based on the size and medium of the artwork.