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is AGW stated in terms of .999 purity equivalent?

DennisHDennisH Posts: 14,042 ✭✭✭✭✭
in World & Ancient Coins Forum
I've always wondered about this.
When in doubt, don't.

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    lordmarcovanlordmarcovan Posts: 45,389 ✭✭✭✭✭
    AGW means Avoirdupois Gold Weight, or Actual Gold Weight.

    .999 (or .900, or whatever) is the purity, or "fine" standard, meaning the percentage of purity (.999 is 99.9% pure, .925 silver is 92.5% pure, and so on.)

    The AGW or ASW (or APW, for platinum) is the actual amount of bullion in the coin.

    So a Mercury dime, for example, is .900 fine silver, with an ASW of .07234 oz.

    Collector since 1976. On the CU forums here since 2001.

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    DennisHDennisH Posts: 14,042 ✭✭✭✭✭


    << <i>So a Mercury dime, for example, is .900 fine silver, with an ASW of .07234 oz. >>

    That is what I had thought, but wasn't totally sure about. Thanks very much for the confirmation.
    When in doubt, don't.
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