Michael Ruppe ( 1863 - 1951 ) was an Austrian painter. Michael Ruppe s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 329.03 USD for Spaziergänger mit Blick auf Dorf in 2004 to 704.47 USD for Der Hexenturm in Salzburg in 2012 , based on the size and medium of the artwork.