Freakish Blue Patina? - Antoninus Pius Sestertius Slow Quadriga

Discussion in 'Ancient Coins' started by Marsyas Mike, May 16, 2018.

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  1. medoraman

    medoraman Well-Known Member

    That bright of a blue I would say would be from chemical cleaners. I have seen US, World, and ancient coins over the years with the same colors. Blue can very rarely be part of a ancient patina, but it is not usually that shade. Most blue ancients are a function of these chemical cleaners.
     
    medoraman, May 18, 2018
    #21 + Quote Reply
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