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Blast Furnaces
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Main open hearth furnace building at Minnesota Steel Company, Duluth, Minnesota
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West Duluth Furnace Company, Duluth, Minnesota
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Zenith Furnace Company, Duluth, Minnesota
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Zenith Furnace Company, Duluth, Minnesota
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Zenith Furnace Company, Duluth, Minnesota
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Zenith Furnace Company, Duluth, Minnesota
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Zenith Furnace Company, Duluth, Minnesota
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Zenith Furnace, Duluth, Minnesota
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Black-and-white photographs
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1930
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City of Duluth
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Saint Louis
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Subject Headings
Blast Furnaces
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Steel Industry and Trade
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University of Minnesota Duluth, Kathryn A. Martin Library, NEMHC Collections
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Minnesota Museum of Mining
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