Miniature of St. Gauden's first $20 14 karat gold piece

Discussion in 'What's it Worth' started by NoCoinKnowlege, Sep 14, 2011.

  1. NoCoinKnowlege

    NoCoinKnowlege New Member

    Hi! I have a miniature of St. Gauden's first $20 14 karat gold piece along with a certificate of authenticity. I needed a magnifying glass to see the wording. It says Liberty MCMVII and the other side says United States of America Twenty Dollars. I found something on youtube that claims the full size coin is very valuable but could not see anything about the miniatures from 1907. Does anyone have any idea?
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  3. midas1

    midas1 Exalted Member

    The certificate of authenticity describes what it is or should be?

    What does it say?
  4. It sounds like it may be one of those Fake Mint scams to me. Do you have any pictures of it?
  5. BUncirculated

    BUncirculated Well-Known Member

    The diameter of the MCMVII St. Gaudens is 34 millmeters and a weight of 33.4 grams. If yours is less than that, it most likely is a 14k gold plate copy and not worth anything.

    Yes, the full size St. Gaudens is quite valuable depending on the variety and can start around $2200 in G, and go as high as $200,000+ in PR.
  6. NoCoinKnowlege

    NoCoinKnowlege New Member

    Certificate of Authenticity The World's First Miniature Solid 14 Karat Gold $20 GOLD PIECE This is to certify that the $20 gold piece is solid 14 kt. gold - an authentic miniature of St. Gauden's first $20.00 gold piece minted by the Historic Providence Mint in accordance with the guidelines established by the United States Secret Service Division of the Department of Treasury. Serial Number * 014305 Joseph W. England Managing Director The Historic Providence Mint HC-116
  7. gboulton

    gboulton 7070 56.98 pct complete

    That being the case, then it's a simple matter of doing the math.

    Weigh the piece. We'll presume you get a weight in grams.

    Multiply the grams by .0321507466 (There are .0321507466 Troy Oz in a gram) for a total Troy ounce Weight.

    Multiply that weight by .58333 (14k gold is 14/24 or .58333 "pure" gold)

    This will give you the troy ounce weight of "pure" gold in your coin.

    Multiply that by whatever the current bid price for gold is (which you can find at,, or a dozen other places) and you'll have the melt value of your coin.
  8. midas1

    midas1 Exalted Member

  9. gboulton

    gboulton 7070 56.98 pct complete

    You mean like .58333 maybe? :too-funny:

    (Sorry...just couldn't help myself)
  10. lkeigwin

    lkeigwin Well-Known Member

    Welcome to CoinTalk. Enjoy your time here.

    The original coin is very valuable, yes. Copies of any kind are not. Your mini gold coin is worth no more than its gold content, as others have said. But ebay shoppers are surprisingly unpredictable. You might get a few dollars more.
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