William Adolphus Knell ( 1805 - 1875 ) was a British painter. William Adolphus Knell s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 915.78 USD for MOONLIT HARBOUR in 2003 to 7153.76 USD for The East Indiaman Exeter making for the Ladrone Islands in 2012 , based on the size and medium of the artwork.