Mason Chamberlin ( 1727 - 1787 ) was an American painter. Mason Chamberlin s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1971.41 USD for Portrait of a lady, probably Elizabeth Hartley (1751-1824), half-length, in a pink dress with blue sash and shawl, her right elb in 2004 to 11250 USD for PORTRAIT OF A GENTLEMAN WITH HIS SON