Johann Heinrich Menken ( 1766 - 1839 ) was a German painter. Johann Heinrich Menken s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 175 USD for THE COWS ON THE BANK OF THE WATER. in 2006 to 7601.35 USD for BOSKAP VID VATTENDRAG. in 2008 , based on the size and medium of the artwork.