Isidor Kaufmann (after) ( 1853 - 1921 ) was a Hungarian painter. Isidor Kaufmann (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1173.4 USD for A young beauty in 2006 to 2000 USD for PORTRAIT OF AN ELDERLY JEW in 2014 , based on the size and medium of the artwork.