Leslie’s Illustrated Newspaper, Schuylkill Flood 1869
Lancaster/Schuylkill Bridge (Upper Ferry Bridge)
Race Bridge, Fairmount Water Works, 1834
View of Fairmount Water Works, ca. 1827
Pennypack Sewage Treatment Works, 1914
Bingham Street Sewer, East of Tacony Creek, 1921
Sewer construction, Rock Run, 1922
Torresdale Conduit work gang, 1906