A pipe aqueduct (the Wissahickon aqueduct?), Philadelphia, Pennsylvania. Photograph, ca. 1880.

Date:
1880
Reference:
575589i

Licence: Public Domain Mark

Credit: A pipe aqueduct (the Wissahickon aqueduct?), Philadelphia, Pennsylvania. Photograph, ca. 1880. Wellcome Collection. Source: Wellcome Collection.

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