NPG 249 (1b)
Letter from David Thurlow Cunninghame to Sir G. Scharf, director of the National Portrait Gallery, dated 10 September 1867, offering to sell the portrait of Baron Thurlow to the Gallery and providing information about it.
"a first rate painting".
Many years ago George the 4th then Prince Regent wished to buy it & offered my father 500 guineas for it. It is a family portrait & they refused to part with it. Circumstances however now prompt me to sell it. The one other Portrait of him which I saw years ago in Windsor Castle was at the Manchester Exposition in 57. But my picture is very superior to it.