Bridge Street Draw. General view of old draw, ca 1896
The Water Works in Centre Square, Philadelphia
Pennsylvania Hospital in Pine Street
“Philadelphia Underground,” Jan. 29, 1961
Centennial Exhibition situation plan, 1876
Oak Lane Reservoir pipeline, 1904
Upper Roxborough filter beds under construction, July 1902
Electric Pump Installations at Lardner’s Point Pumping Station
Philadelphia Water Department Fire Hydrant
Diagram showing the daily pumpage for the year 1877
