Erwin Blumenfeld ( 1897 - 1969 ) was an American painter. Erwin Blumenfeld s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1468.35 USD for DUBBEL PORTRAIT, 1910-1928 in 2003 to 111750 USD for Dictator in 2013 , based on the size and medium of the artwork.