Bessemer Mill and Open Hearth Furnace


The top image is the exterior of Bessemer Steel-Mill, Pennsylvania Steel Works. The bottom image is Open Hearth Furnace and Blooming Mill, Pennsylvania Steel Works.
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Bessemer Mill and Open Hearth Furnace The top image is the exterior of Bessemer Steel-Mill, Pennsylvania Steel Works. The bottom image is Open Hearth Furnace and Blooming Mill, Pennsylvania Steel Works.