Philippe Mercier (after) ( 1689 - 1760 ) was a French painter. Philippe Mercier (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 462.15 USD for PORTRAIT OF A LADY in 2004 to 36000 USD for A gentleman taking tea on a terrace and conversing with a gardener in 2006 , based on the size and medium of the artwork.