Ludwig Paul Wilhelm Keller ( 1865 - 1925 ) was a German painter. Ludwig Paul Wilhelm Keller s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2232 USD for Sheep Grazing Along the River in 2007 to 5444.23 USD for THE BAY OF NAPLES WITH YOUNG ITALIANS in 2012 , based on the size and medium of the artwork.