Classical Numismatics Discussion
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FORVM`s Classical Numismatics Discussion Board  |  Numismatic and History Discussions  |  Coin Photography, Conservation and Storage  |  Topic: HOW CAN I CLEAN OR FIX THIS SILVER TETRADRACHM ??? 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: HOW CAN I CLEAN OR FIX THIS SILVER TETRADRACHM ???  (Read 1329 times)
stef n
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« on: November 30, 2008, 03:51:55 am »

PTOLEMY xii SILVER  corrosion ? disease? or?
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areich
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« Reply #1 on: November 30, 2008, 05:16:48 am »

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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stef n
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« Reply #2 on: November 30, 2008, 05:30:36 am »

that brown red is that corrosion? will it be worse in a few years??
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Akropolis
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« Reply #3 on: November 30, 2008, 06:53:38 am »

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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stef n
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« Reply #4 on: November 30, 2008, 07:00:22 am »

thanks...to both
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bruce61813
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« Reply #5 on: December 01, 2008, 09:42:52 am »

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
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too many coins - too little time!!
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FORVM`s Classical Numismatics Discussion Board  |  Numismatic and History Discussions  |  Coin Photography, Conservation and Storage  |  Topic: HOW CAN I CLEAN OR FIX THIS SILVER TETRADRACHM ??? « previous next »
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