Centre Square Water Works, Latrobe Plans, 1799
Dauphin and Sydenham car crash, Jan. 17, 1978
Thomas Run sewer outlet at Cobbs Creek
69th St. Sewer and Culvert across Lansdowne AVe.
Duplex Pumping Engine, Belmont Works
View from the Inclined Plane near Philadelphia, 1838
Fairmount Water Works, about 1860