Isaac Ouwater ( 1748 - 1793 ) was a Dutch painter. Isaac Ouwater s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from USD for in to 67702.43 USD for The Brouwersgracht and the Lijnbaansgracht, Amsterdam, with the rope maker ´t Fortuin and the Bullebak sluice, the Haarlemmerpoo in 2003 , based on the size and medium of the artwork.