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
Fairmount Water Works, about 1860
Standard Philadelphia (B) Hydrant
Philadelphia Water Department Fire 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
