High Street, with the First Presbyterian Church, Philadelphia, 1800
New Lutheran Church in Fourth Street, Philadelphia
Arch Street, with the Second Presbyterian Church, 1800
Arch Street Ferry, Philadelphia
The City and Port of Philadelphia on the River Delaware from Kensington, 1800
Map of Philadelphia showing Population in year 1920
“Philadelphia Underground,” Jan. 29, 1961
“Sewer Crawlers,” January 29, 1961
PWD water tech at the Philly Home Show, 1960 (detail)
Lab tech, water cleaning demo, Philly Home Show, 1960
