Charles G Duff ( 1899 - ) is a British painter. Charles G Duff s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 474.5 USD for Henry 'Harry' Lucy at Boodles Journalist in 2005 to 745.64 USD for The Prince of Wales, 'Bertie', later King Edward VII, at the Moulin Rouge in 2005 , based on the size and medium of the artwork.