Ferenc Krupka ( 1870 - 1928 ) was a Hungarian painter. Ferenc Krupka s works have been put up for auction numerous times, with realized prices varying from 38.9 USD for Brustbild einer lesenden alten Bäuerin mit Kopftuch in 2008 to 400 USD for SHEPHERD AND HIS FLOCK in 2015 , based on the size and medium of the artwork.