A Map of Pennsylvania, 1770-1775, 1.8 Megs.
Based on map of W. Scull, 1770, printed in London for Robt. Sayer & J. Bennett.
Pennsylvania, 1836, 1157k.
From Tanner's Universal Atlas, published in Philadelphia by Henry S. Tanner.
This is a beautiful map.
Pennsylvania and New Jersey, 598k.
Map from an 1835 atlas, published in Boston by Thomas Bradford.
County Maps and Atlases

