August Christian Hauck ( 1742 - 1801 ) was a Dutch painter. August Christian Hauck s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 5796.14 USD for A PORTRAIT OF ONNO TAMMINGA BARON DU TOUR (1724-1779), SEATED THREE-QUARTER LENGTH, WEARING A BLUE COAT in 2005