Fairmount Park topographical map, showing East Park Reservoir, 1872
Last gasp of the Schuylkill Interceptor, December 20, 1956
Wissahickon Pipe Aqueduct, Roxborough to Mt. Airy, 1868
Wingohocking Sewer across Penn St.
Queen Lane Pumping Station, proposed design
Centre Square Water Works, Frederick Graff, Sr. Plans, 1799
Dauphin and Sydenham car crash, Jan. 17, 1978
Mill Creek Sewer under construction, 1883
69th St. Sewer and Culvert across Lansdowne AVe.
Outhouse over the Schuylkill near Pottstown