FORVM`s Classical Numismatics Discussion Board
Numismatic and History Discussion Forums => Coin Photography, Conservation and Storage => Topic started by: stef n on November 30, 2008, 05:51:55 am
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PTOLEMY xii SILVER corrosion ? disease? or?
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There's nothing to clean or fix there, whether it looks this way because of natural processes or harsh cleaning,
there's nothing short of painting it that will improve this coin.
Andreas
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that brown red is that corrosion? will it be worse in a few years??
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that brown red is that corrosion? will it be worse in a few years??
It appears to be a hard, stable deposit. Further, silver coins doi not get "bronze disease."
PeteB
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thanks...to both
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It is possible that the "red brown" is a tiny bit of iron. OPart of you coin hace been damaged by some type of corrosion, so it may have been against some iron and that is a bit that is still bonded to the surface of the silver. If that is the case, there is no real reason to worry, the silver will be fine.
Bruce