Places Pennsylvania

Black and white photo of a worker with darker skin, wearing protective clothing, gloves, and a hard hat with the number 25 on the front, reaching up out of a sewer manhole, only head, shoulders, and left arm visible.

Manholes like this give access to city’s sewer system, 1961

Philadelphia Underground, Jan. 29, 1961

“Philadelphia Underground,” Jan. 29, 1961

Sewer Crawlers, Jan. 29, 1961

“Sewer Crawlers,” January 29, 1961

PWD water tech at the Philly Home Show, 1960

PWD water tech at the Philly Home Show, 1960 (detail)

Lab tech at Philly Home Show, 1960

Lab tech, water cleaning demo, Philly Home Show, 1960