Georg Mühlberg ( 1863 - 1925 ) was a German painter. Georg Mühlberg s works have been put up for auction numerous times, with realized prices varying from 25 USD for Warum Halt?!; Die Sekundanten in 2007 to 170 USD for Portrait of a man smoking a pipe standing at the harbor. in 2017 , based on the size and medium of the artwork.