Map Lovers’ Monday: Philadelphia Topography
Map Lovers’ Monday: The David Rumsey Map Collection
Dauphin and Sydenham car crash, Jan. 17, 1978
Plan and profile of proposed Delaware Seventh St. Sewer, 1850
Delaware River at Arch Street from the New Jersey side, 1914
Bacteria in Delaware River, Torresdale Filters, 1913
Water, Water Everywhere – Philadelphia Record, 1937-03-14
Arch Street Ferry, Philadelphia
The City and Port of Philadelphia on the River Delaware from Kensington, 1800
Philadelphia the Manufacturing and Industrial Capital map, 1906