Karl Moor ( 1904 - 1991 ) was a Swiss painter. Karl Moor s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 238.3 USD for Landschaft am Neuenburgersee. in 2005 to 2770.91 USD for Zürich im Winter in 2007 , based on the size and medium of the artwork.