Frits Gils ( 1901 - 1957 ) was a German painter. Frits Gils s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2022.61 USD for Sitzendes Mädchen in 2005 to 3236.17 USD for Zwei Mädchen mit Muschel in 2005 , based on the size and medium of the artwork.