David Adolf Constant Artz ( 1837 - 1890 ) was a Dutch painter. David Adolf Constant Artz s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 3988.08 USD for Return of the flock in 2004 to 28384.95 USD for WATCHING THE SHIPS RETURN in 2009 , based on the size and medium of the artwork.