Robert Riefenstahl ( 1823 - 1903 ) was a German painter. Robert Riefenstahl s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 80.48 USD for Im Punjer wie er 1855 war in 2006 to 362.35 USD for Aus dem Oberharzen. Herbstlandschaft in 2011 , based on the size and medium of the artwork.