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  1. 1
    Cover Image

    Milling methods and costs at Homestake mine, Lead, S.Dak

    Published 1931
    “…Mines Bur. Info. Circ. No. 6408.…”
    Government Document Microfilm Book

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  2. 2
    Cover Image

    Milling methods and costs at Homestake mine, Lead, S.Dak.

    Published 1931
    “…Mines Bur. Info. Circ. No. 6408.…”
    Full Text (via ProQuest)
    Government Document eBook

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