Map Lovers’ Monday: Water for City Hall
Wissahickon Pipe Aqueduct, Roxborough to Mt. Airy, 1868
Map Lovers’ Monday: 1891 Water Supply Plan
Listening for leaks
Wooden Pipes in Philadelphia
Wooden Water Pipe, removed from Market Street, December 6, 1901
Half a Century of Clean Water
Centennial Exhibition situation plan, 1876
Bureau of Water, Cumberland, west of 13th Street, pipe line, 1907
Oak Lane Reservoir pipeline, 1904