Cresheim Aqueduct
Pipeline being laid in Wissahickon Avenue
Typhoid bacteria diagram, 1905
Wooden Water Pipe, removed from Market Street, December 6, 1901
Main Pumping Stations for Philadelphia Drinking Water
Philadelphia the Manufacturing and Industrial Capital map, 1906
Torresdale Conduit work gang, 12/18/1906
Bureau of Water, Cumberland, west of 13th Street, pipe line, 1907
Oak Lane Reservoir pipeline, 1904
State Street pipeline construction, 1904