Plan of Philadelphia, John Hills, 1796
Indoor plumbing in mid-19th century Philadelphia
Visions of the Schuylkill, 1884 and Now
Centre Square Water System
Centre Square Water System, Drawings of Intake Basin
Fairmount Water Powered Works Expansion (1859 to 1861)
Fairmount Water Turbine Wheels (1851)
Fairmount Water Powered Water Works (1822)
Fairmount Steam Works (1815)
High Pressure Fire Service Stations (1902)
