Item Types Photograph

Any images made from a photographic print or negative, including stereoviews, glass or film negatives, tintypes, daguerreotypes, and other photographic processes.

Photograph of Roberts Mill on Wingohocking Creek in Germantown, built in the late 17th century. (Photograph by J. C. Browne, 1871. Castner Collection/Free Library of Philadelphia)

Roberts Mill, Wingohocking Creek, 1871

men standing around a trench with pipes seen crossing through it. there is a steam engine on wheels behind them to the left, and a building in the background on the right with a sign they says Hotel Abbey, T G Schmidt & Sons, Pilsner & Puritan Beer.

Pipeline being laid in Wissahickon Avenue

Pennsylvania Railroad Bridge at Manayunk, about 1895

Wheeled robotic sewer crawler in sewer pipe

Still photo from a video sewer inspection, 2000

Upper Roxborough filter beds

Upper Roxborough filter beds under construction, July 1902

Two bottles of water from a river, one dark with pollution and one clear after filtration

Water Before and After Roxborough

1902 photo of Upper Roxborough Filter beds under construction

Upper Roxborough Filter Bed Construction, 1902