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R.C. Allen, Consultant, Ferrous Mineral and Alloys Production Division (right), and Dr. C.K. Leith, Consultant on Minerals…
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R.C. Allen, Consultant, Ferrous Mineral and Alloys Production Division (right), and Dr. C.K. Leith, Consultant on Minerals, Office of Production Management (OPM). Formerly professor in Geology at the University of Wisconsin (still). Sourced from the Library of Congress.

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R.C. Allen, Consultant, Ferrous Mineral and Alloys Production Division (right), and Dr. C.K. Leith, Consultant on Minerals, Office of Production Management (OPM). Formerly professor in Geology at the University of Wisconsin (still). Sourced from the Library of Congress.

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