What gives coins blue toning?

Discussion in 'Coin Chat' started by William F, May 16, 2021.

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  1. William F

    William F Well-Known Member

    William F, May 18, 2021
    #21 + Quote Reply
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  3. charley

    charley Well-Known Member

    Based only on the photo (and not the displayed colors on my monitor), I would vote NT, for the reason that the color changes are a well known color progression. It is very difficult to achieve by AT, especially the Titian and Rossa Balmoral.
     
    charley, May 18, 2021
    #22 + Quote Reply
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