Hermanus Koekkoek ( 1815 - 1882 ) was a Dutch painter. Hermanus Koekkoek s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 18349.82 USD for FISHING BOATS AT LOW TIDE in 2003 to 307200 USD for SHIPPING ESTUARY: HAULING IN THE BOATS AT DAY'S END in 2006 , based on the size and medium of the artwork.