Johann Friedrich Volz ( 1817 - 1886 ) was a German painter. Johann Friedrich Volz s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1193.13 USD for Stehende Kuh in 2004 to 9610.76 USD for Kühe an der Tränke in 2008 , based on the size and medium of the artwork.