Centre Square Engine House, ca. 1807
Southeast Corner of Third and Market, Philadelphia
Half a Century of Clean Water: The Clean Water Act, 1972-2022
19th century life in South Philadelphia’s marshland
View from front of 322 S. 44th, April 18, 1914
Wood truss drawbridge, Orthodox Street over Frankford Creek, 1899 [Detail]
Bridge Street Draw, construction of piers, ca. 1896
Bridge Street Draw, Cofferdam, ca 1896 [Detail]
Bridge Street Draw, looking north, ca. 1896
Bridge Street Draw, southeast corner property, June 12, 1896