William Gersham Collingwood ( 1819 - 1903 ) was a British painter. William Gersham Collingwood s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 299.67 USD for Fisherfolk on the beach in 2003 to 414.25 USD for A cavalier in a darkened interior, a bird on his sword in 2006 , based on the size and medium of the artwork.