Maps--19th century 6 Maps--Pennsylvania 5 United States--History--Revolution, 1775-1783--Maps 5 Maps--Pennsylvania--Philadelphia County 4 Pennsylvania--Maps--18th century 4 Maps--Military 3 Cartography--18th century 2 more ... Estate administration--19th century 2 Germantown (Philadelphia, Pa.) 2 Indians--18th century 2 Land Surveys--18th century 2 Maps--18th century Maps--18th century Maps--18th century 2 Maps--Germantown 2 Maps--North America--18th century 2 Mason-Dixon Line 2 Pennsylvania Views 2 Pennsylvania--History--Colonial period, ca. 1600-1775 2 Spouses--Correspondence--19th century 2 United States. Army of the Potomac 2 United States. Army. Corps of Engineers--History--19th century 2 Accounts--19th century 1 Banking law--United States--History 1 Banks and banking--United States 1 Boundary disputes 1 Canals--Chesapeake and Delaware 1 Cartography--19th century 1 Cemeteries 1 Centennial Exhibition (1876 : Philadelphia, Pa.) 1 Commerce--Philadelphia--19th century 1 Commonplace books 1 England--Description and Travel--19th century 1 Estates--United States 1 Europe--Description and Travel--19th century 1 Fairmount Park Commission (Philadelphia, Pa.) 1 Forts and Encampments--Maps 1 Forts--18th century 1 France--Description and travel--19th century 1 French Monarchs--18th century 1 French and Indian War--Ft. Duquesne 1 Genealogists--Research 1 less ...