Bridge Street Draw. Southwest side of bridge. April 19, 1896. [Detail].
Bridge Street Draw, April 19, 1896. [Detail of men]
Map of Philadelphia showing Population in year 1920
“Philadelphia Underground,” Jan. 29, 1961
Torresdale Conduit work gang, 12/18/1906
Bureau of Water, Cumberland, west of 13th Street, pipe line, 1907
State Street pipeline construction, 1904
Northern Liberties and Spring Garden Water Works
Water Works Standpipe, 1853
