[MAP]. EVANS, Lewis and Thomas POWNALL. A Map of the Middle British Colonies in North America. London: J. Almon, 1776. Engraved map, approximately 510 x 850 mm, showing the Colonies, keys for township names, distance charts, and an inset sketch continuing the map of the Ohio river. (Some browning and other patches of minor staining, few short fold tears, originally colored in outline now faded to brown.) Matted and framed (not examined outside of frame). An authorized version of Evans' important map with his approbation, further supplemented with additional information by Thomas Pownall, Governor of New Jersey and Massachusetts.