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1940
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1949
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Remove constraint Date Created: <span class="from" data-blrl-begin="1940">1940</span> to <span class="to" data-blrl-end="1949">1949</span>
Subject Headings
Iron Industry and Trade
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Iron Mines and Mining
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Duluth Missabe and Iron Range Railway Ore Dock 6, Duluth, Minnesota
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Duluth Missabe and Iron Range Railway 236 with loads, Rainy Junction Yard, Virginia, Minnesota
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Duluth Missabe and Iron Range 232 with ore train at Coleraine Junction, Minnesota
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Duluth Missabe and Iron Range 232 with ore train at unknown location, Minnesota
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Hull-Rust Mine, Hibbing, Minnesota
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Oliver Iron Mining Company electric shovel, Hibbing, Minnesota
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Spruce Mine, Eveleth, Minnesota
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Spruce Mine, Eveleth, Minnesota
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Step 2 of testing and ore sample: Crusher in the mine lab, Minnesota
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Step 1 of testing and ore sample: Gathering ore sample for the mine lab from the ore train, Minnesota
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Step 3 of testing and ore sample: Grinding the sample in the mine lab, Minnesota
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Step 5 of testing and ore sample: Ring stand and crucible, Minnesota
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Step 4 of testing an ore sample: Riffler in the mine lab, Minnesota
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Business and Industry
9
Transportation
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Still Image
13
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Black-and-white photographs
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Date Created
1940
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1949
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Subject Headings
Iron Industry and Trade
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13
Iron Mines and Mining
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13
Iron Ores
8
Locomotives
2
Contributor
Minnesota Museum of Mining
5
Lake Superior Railroad Museum
4
University of Minnesota Duluth, Kathryn A. Martin Library, NEMHC Collections
4
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