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New blue busts...

TrinkettsTrinketts Posts: 1,699 ✭
in U.S. Coin Forum
image
image
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    TrinkettsTrinketts Posts: 1,699 ✭
    and the reverses

    image
    image
    Either write something worth reading or do something worth writing about. -Benjamin Franklin-
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    kryptonitecomicskryptonitecomics Posts: 9,185 ✭
    Oh my.......now those are some great coins.....very nice image
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    TrinkettsTrinketts Posts: 1,699 ✭
    Think these will both get EF?
    Either write something worth reading or do something worth writing about. -Benjamin Franklin-
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    TrinkettsTrinketts Posts: 1,699 ✭
    Does anyone know what causes the blue in these halves...
    Either write something worth reading or do something worth writing about. -Benjamin Franklin-
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    MikeKingMikeKing Posts: 847


    << <i>Does anyone know what causes the blue in these halves... >>



    interesting question. i've been wondering myself.
    this is an 1830 I picked up from the Reiver sale:

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    image
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    MikeKingMikeKing Posts: 847
    in the clock world, steel hands and screws are heated to a high temperature and then quickly cooled, yeilding 'blued' steel.
    My quess is that this is a sort of annealing process, hardening or stregnthening the surface. It's a steel oxide. But what is steel but an alloy of iron and carbon, and I believe there are different kinds of steel of varying degrees of hardness produced by alloying with other metals like chromium or molybdenum (I could be entirely wrong). I believe silver oxide would be black, but then, steel, if heated at a higher temperature and cooled can become black. Also, I don't know what was added to the silver used in coining the Bust coins and if the kind of silver used varied from year to year and allowed for different kinds of toning. Maybe Tomb can answer this question.

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    CoinAddictCoinAddict Posts: 5,571 ✭
    Very nice coins.image
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    Capped Bust Half Series
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    image
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    ms70ms70 Posts: 13,958 ✭✭✭✭✭

    Nice busts! image
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    bgricebgrice Posts: 1,180
    Those ARE pretty busties. image
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    DeputyPudDeputyPud Posts: 158
    I bought a complete set in an old Wayte Raymond holder. Many of them had a very old light cleaning and had re-toned. Some had no evidence of cleaning.
    All had almost exactly the same periphery toning that yours have (perhaps just a wee bit darker blue).
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    TrinkettsTrinketts Posts: 1,699 ✭
    The 1822 looks alot like this coin in the coin fact banner for PCGS.

    image
    Either write something worth reading or do something worth writing about. -Benjamin Franklin-
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    TrinkettsTrinketts Posts: 1,699 ✭
    Double post delete...
    Either write something worth reading or do something worth writing about. -Benjamin Franklin-

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