Irma Rothstein ( 1896 - 1971 ) was an American painter. Irma Rothstein s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 544.71 USD for Kniender Frauenakt. in 2005 to 1340.82 USD for Frauenkopf. in 2005 , based on the size and medium of the artwork.