A map of Pennsylvania exhibiting not only the improved parts of that Province, but also it's extensive frontiers, laid down from actual surveys, and c(...)

A map of Pennsylvania exhibiting not only the improved parts of that Province, but also it's extensive frontiers; laid down from actual surveys, and chiefly from the late map of W. Scull published in 1770; and humbly inscribed to the Honourable Thomas Penn and Richard Penn Esquires true and absolute proprietaries & Governors of the Province of Pennsylvania and the Territories thereunto belonging