Konrad V Kardorff ( 1877 - 1945 ) was a German painter. Konrad V Kardorff s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1298.7 USD for Unbeschwerter Sommertag in 2004 to 3500 USD for Summer Cottage, 1921 in 2008 , based on the size and medium of the artwork.