Morgan Help 2: White Shadows and White #s

Discussion in 'US Coins Forum' started by bradgator2, Feb 21, 2020.

  1. bradgator2

    bradgator2 Supporter! Supporter

    So first is a 82s, PSGS 66+.

    What causes the white shadows seen under the date and stars?

    [​IMG]
    [​IMG]

    Part B is 1900 O, NGC 64.

    What causes nearly all the date and stars to be dull white?

    [​IMG]

    Thanks,
    Brad
     
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  3. cpm9ball

    cpm9ball CANNOT RE-MEMBER

    @bradgator2

    It is called "pull-away toning" on the '82.
    PULL AWAY TONING .jpg
     
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  4. bradgator2

    bradgator2 Supporter! Supporter

    Fascinating. I am finding that term in some threads. The explanations seem to say the metal flow at a molecular level prevents toning there. But on the flipside, I guess (since there is no toning on the 82) it also prevents luster?
     
  5. -jeffB

    -jeffB Greshams LEO Supporter

    I'd say that it alters both luster and toning.
     
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  6. atcarroll

    atcarroll Well-Known Member

    The dull white on the date and stars is die frost. The recessed areas of the die have a frosty texture, it wears off the small, relatively protected areas last. I'm not sure which step of the die preparation process imparts the frosted texture, maybe someone with more knowledge will post on this thread.
     
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  7. bradgator2

    bradgator2 Supporter! Supporter

    So.... a fatal flaw in googling “morgan frost” is there is a current NHL player named Morgan Frost.:banghead:
     
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