Karl Ewald Olszewski ( 1884 - 1965 ) was a Russian painter. Karl Ewald Olszewski s works have been put up for auction numerous times, with realized prices varying from 141.6 USD for Reiher auf Felsbrocken im Wasse in 2004 to 593 USD for Swans in Flight in 2012 , based on the size and medium of the artwork.