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Showing 1 - 8 results of 8 for search '"United States Bureau of Mines"', query time: 0.23s Refine Results
  1. 1
    by Petersen, Max S.
    Published 1944
    “... Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines. Donor: United States...”
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  2. 2
    by Petersen, Max S.
    Published 1944
    “... Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines. Donor: United States...”
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    Still Image
  3. 3
    by Petersen, Max S.
    Published 1944
    “... Mining History Archive, Arthur Lakes Library, Colorado School of Mines. Donor: United States Bureau...”
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    Still Image
  4. 4
    by Petersen, Max S.
    Published 1944
    “... Mining History Archive, Arthur Lakes Library, Colorado School of Mines. Donor: United States Bureau...”
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    Still Image
  5. 5
    by Petersen, Max S.
    Published 1944
    “..., Arthur Lakes Library, Colorado School of Mines. Donor: United States Bureau of Mines. A churn drill...”
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  6. 6
    by Petersen, Max S.
    Published 1944
    “...: United States Bureau of Mines. A churn-drill tool used to sink a ventilation hole lies in the snow...”
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  7. 7
    by Petersen, Max S.
    Published 1944
    “...: United States Bureau of Mines. A churn-drill tool used to sink a ventilation hole lies in the snow...”
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    Still Image
  8. 8
    by Petersen, Max S.
    Published 1944
    “..., Arthur Lakes Library, Colorado School of Mines. Donor: United States Bureau of Mines. A churn drill...”
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    Still Image
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