State Street pipeline construction, 1904
Finished Upper Roxborough filters, 1903
Upper Roxborough filter beds under construction, July 1902
Outhouse over the Schuylkill near Pottstown
Northern Liberties and Spring Garden Water Works
Engine House of the Belmont Works
Electric Pump Installations at Lardner’s Point Pumping Station
View from the Inclined Plane near Philadelphia, 1838
Fairmount Water Works, about 1860
Standard Philadelphia (B) Hydrant
