Philip Core ( 1951 - 1989 ) was a British painter. Philip Core s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 162.03 USD for ARROSE, SELAVY (MARCEL DUCHAMP AND ANDY WARHOL) in 2010 to 824.19 USD for The duel in 2014 , based on the size and medium of the artwork.