Bridge Street Draw. View of old draw removed, looking north. April 19, 1896. [Detail]
Bridge Street Draw. General view of old draw, ca 1896
The Water Works in Centre Square, Philadelphia
Pennsylvania Hospital in Pine Street
“Philadelphia Underground,” Jan. 29, 1961
Centennial Exhibition situation plan, 1876
69th St. Sewer and Culvert across Lansdowne AVe.
Ventilating cover for manholes
Torresdale Conduit work gang, 12/18/1906
Bureau of Water, Cumberland, west of 13th Street, pipe line, 1907
