Caspar Ritter ( 1861 - 1923 ) was a Swiss painter. Caspar Ritter s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 311.16 USD for Sitzender weiblicher Akt in 2005 to 12995.45 USD for Interieurszene. Zwei junge Frauen vor Fensterbank sitzend im Gespräch in 2006 , based on the size and medium of the artwork.