Bird’s eye view of Delaware River and Philadelphia, about 1840
Sketch of aquarium in former FWW building, interior, ca. 1950
View from the Inclined Plane near Philadelphia, 1838
Charles Spencer & Co., Leicester Knitting Mills, Germantown, Philadelphia
Philadelphia Standard Distribution Valve
Standard Philadelphia (B) Hydrant
Philadelphia Water Department Fire Hydrant
Commencement of laying the main on the East side of the River, 1871
Engine House, Belmont Works
Diagram showing the daily pumpage for the year 1877