Search Results - "Opals."

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    Opals and sapphires : how to work, mine, class, cut, polish and sell them /

    Opals and sapphires : how to work, mine, class, cut, polish and sell them / by Idriess, Ion Llewellyn, 1890-

    Published 1967
    Subjects: “…Opals.…”
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    Opal men /

    Opal men / by Wake, Percival Vincent

    Published 1969
    Subjects: “…Opals.…”
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