Thomas Day ( 1768 - 1788 ) was a British painter. Thomas Day s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1350.41 USD for A Gentleman, wearing blue coat with large gold buttons, cream waistcoat and frilled white cravat, his hair powdered and worn en in 2004 to 9969.13 USD for PORTRAIT OF A GENTLEMAN in 2008 , based on the si