Color Diagram of Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia
PWD water tech at the Philly Home Show, 1960 (detail)
State Street pipeline construction, 1904
Belmont Filters construction, 1903
Rudolph Hering
Electric Pump Installations at Lardner’s Point Pumping Station
View from the Inclined Plane near Philadelphia, 1838
Standard Philadelphia (B) Hydrant
Engine House, Belmont Works
Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912
