1800s Archive · Bridges & engineering

Old mill dam on the Wessahickon [sic], Philadelphia, Pa.

Philadelphia · 1905

Old mill dam on the Wessahickon [sic], Philadelphia, Pa., Philadelphia, 1905
Old mill dam on the Wessahickon [sic], Philadelphia, Pa., Philadelphia, 1905. Bridges & engineering — The 1800s Archive, from the Library of Congress record.

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