Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lovers’ Monday: Philadelphia in 1957, according to the Pennsy
Map Lover’s Monday: Looking for Cleaner Water
Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Annual reports and other documents relating to Philadelphia’s water supply system, 1796-1941
Map of Philadelphia Harbor, Delaware and Schuylkill, 1912
Cresheim Aqueduct
Pine Street sewer plan, 1848
Fairmount Park topographical map, showing East Park Reservoir, 1872
Schuylkill River from below the South Street Bridge, 1873
