'Henry Constantine Jennings. The Remarkable Virtuoso', 1821. Portrait of British antiquarian, collector and gambler Henry Constantine Jennings (1731-1819). He was known as 'Dog Jennings' after he aquired a Roman sculpture - The Jennings Dog - now in the British Museum in London. From "Wonderful Characters: Comprising Memoirs and Anecdotes of the Most Remarkable Persons of Every Age and Nation", Vol. II, by Henry Wilson. [J. Robins and Co. Albion Press, London, 1821]