Time Periods 1850-1900

Fairmount Park topographical map, showing East Park Reservoir, 1872

Pumping stations after Philadelphia's incorporation, 1854

Main Pumping Stations for Philadelphia Drinking Water

Outline Map of the County and City of Philadelphia and Vicinity (wd000516)

Outline Map of the County and City of Philadelphia and Vicinity, 1883

International Exhibition situation plan, 1876

Centennial Exhibition situation plan, 1876