%0 Prints & Drawings %A Turner, Charles, 1774-1857, engraver %E Joly, Jaspar Robert, 1819-1892, donor %E Lawrence, Thomas, Sir, 1769-1830 %I C. Turner, Warren street %D 1815 %C London %G English %T The Right Hon.ble John McMahon &c &c &c %X Sir John McMahon, (1754-1817), M.P., Private Secretary and Keeper of the Privy Purse; three-quarter length, directed and facing to front, seated, arms resting on arms of chair, paper in right hand, light tie and waistcoat, dark coat buttoned, curtain in background to right.