A Keller ( 1867 - 1924 ) was an American painter. A Keller s works have been put up for auction numerous times, with realized prices varying from 694.94 USD for Travellers on a track by a woodland shrine in 2004 to 910.47 USD for ''Blick auf Bad Säckingen'' mit Rhein u. Brücke; am sandigen Rheinufer Angler u. Fischerboote; auf der rechten Bildseite Stadtbl in 2013 , based on the size and medi