Iron and steel works at Pittsburgh, Pennsylvania, on the banks of the Monongahela River, circa 1910-20

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1910-20, 1920, american, archival, archive, banks, circa, historical, history, industry, iron, monongahela, pennsylvania, pittsburgh, river, steel, works