Theophil Preiswerk ( 1846 - 1919 ) was a Swiss painter. Theophil Preiswerk s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 159.08 USD for Das Ziegenkitz eine Studie in 2004 to 4112.33 USD for Wäscherinnen am Tiber in 2011 , based on the size and medium of the artwork.