A map of Pennsylvania exhibiting not only the improved parts of that Province, but also its extensive frontiers: Laid down from actual surveys, and chiefly from the late map of W. Scull published in 1770; and humbly inscribed to the Honorable Thomas PennScull, William, active 1765, cartographer.10 June 1775.Imprint in three places along lower left, center, and right margin.Prime meridian: London. "Longitude west from London."Relief shown by shading and hachures.Revolutionary War era map of Pennsylvania, compiled by Sayer & Bennett, primarily from William Schull's map. The detailed map extending from Fort Pitt (formerly Fort Duquesne) in the west to the New Jersey border along the Delaware river to the east.Scale of "English Miles 69 1/2 to a Degree".Separately published and in editions of "The North American Atlas" published by Faden; and Thomas Jefferys' The American atlas. 1775;Shows counties, townships, towns and cities, Indian villages, stores, churches, taverns, and names of residents in the countryside; rivers and streams, waterfalls, ferries, swamps, springs, and landmarks; mills, mines, furnaces, and forges; and forts and French and Indian War battle sites. - Cf. Seller & Van Ee, Maps and charts of North America and West Indies, 1750-1789, entry 1296.cartographic