John Giles Eccard ( 1740 - 1779 ) was a British painter. John Giles Eccard s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 830.27 USD for PORTRAIT OF AN OFFICER in 2002 to 3500 USD for Portrait of a gentleman, three-quarter length, seated by a table in 2007 , based on the size and medium of the artwork.