London: Printed for Robt. Sayer & J. Bennett, 1775. Engraved map with hand-tinting and hand-colored outlining. Small repair at bottom center; bottom horizontal fold verso reinforced with japanese paper; scattered minor chipping and short closed tears along edges; light offsetting from when folded; scattered minor spotting on recto. 55 x 29 1/2 in. (139 x 74 cm). In mat and in frame. Often referred to as the "Revolutionary War Map" of Pennsylvania, this was the most comprehensive and detailed map of the state at the time of its publication, and was used by both British and Colonial forces during the Revolutionary War. This is an updated version of William Scull's 1770 map, and was issued five years later by Sayer and Bennett.