Items

Historic resources from our archives - images, maps, documents, and more.

Black-and-white photo of a man standing in a long trench

Sludge Drying Beds, Essen Nord, Germany

Black-and-white image of two cylinders on a white surface

Effects of Expansion of Gas Bubbles in Enscher Sludge Shown in Right-Hand Cylinder

Black-and-white image showing a man standing in a large concrete half-pipe

Thomas Run sewer outlet during construction

Black-and-white image of a table with numbers in columns

Bacteria in Delaware River, Torresdale Filters, 1913

Water, Water Everywhere – Philadelphia Record, 1937-03-14

Black-and-white image of the title page of a government report

Perkiomen Water Supply Surveys, 1866

Black-and-white image of workers in a pit with a sewer opening behind them and text

Frankford Creek: Sad History of an Urban Stream title page

The Water Works in Centre Square, Philadelphia

International Exhibition situation plan, 1876

Centennial Exhibition situation plan, 1876

PWD water tech at the Philly Home Show, 1960

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

Gillette Schuylkill mud cartoon

‘Gillette, All By Himself, Gets Fine New Idea On Germ Slaying’

Torresdale Conduit work gang, 1906

Torresdale Conduit work gang, 12/18/1906