John Ferneley, Sen ( 1782 - 1860 ) was a painter. John Ferneley, Sen s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 9936.25 USD for A grey hunter in a wooded landscape in 2009 to 85000 USD for MR. THOMAS COSBY'S RACEHORSE PUSSY WITH TRAINER AND JOCKEY—WILLIAM DAY AND HIS BROTHER JOHN DAY— AT A FINISHING POST in 2019 , based