Adolphus Knell (after) ( 1860 - 1890 ) was a British painter. Adolphus Knell (after) s works have been put up for auction numerous times, with realized prices varying from 125 USD for STEAMSHIP FRIGATE CYCLOPS in 2005 to 388.37 USD for Fishing boats at sea and unloading the catch in 2010 , based on the size and medium of the artwork.