Outhouse over the Schuylkill near Pottstown
Northern Liberties and Spring Garden Water Works
Duplex Pumping Engine, Belmont Works
Engine House of the Belmont Works
Electric Pump Installations at Lardner’s Point Pumping Station
View from the Inclined Plane near Philadelphia, 1838
Philadelphia Standard Distribution Valve
Standard Philadelphia (B) Hydrant
Commencement of laying the main on the East side of the River, 1871
Showing the method of sinking the pipe on the bed of the river