A collection of printed portraits, topographical views, real estate advertisements, maps, and other ephemera associated with the English historian and collector Horace Walpole (1717-1797), his family, and their properties. The majority of the items are plates produced for publications, and over half of the collection is related to two of the family's estates, Strawberry Hill in Twickenham, Middlesex, and Houghton Hall near King's Lynn, Norfolk.