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 Replies: 9 / Views: 827 |
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Pillar of the Community
 United States
6506 Posts |
 I was checking out this nickel on ebay. Overall, I like the look of the coin, except for these spots on the reverse. Is this staining, debris, or verdigris? Is it treatable, removable, permanent?
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Bedrock of the Community
United States
94367 Posts |
Impossible to say with certainty what these spots are, but I'd guess it's unlikely that all evidence of them could be removed.
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Pillar of the Community
United States
1502 Posts |
I'd think VC would take care of it but you'd likely have a stain, noticeably darker area.
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Pillar of the Community
United States
3178 Posts |
Carbon spots. Can not be removed without damage to the coin.
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Bedrock of the Community
United States
94367 Posts |
Just pass on it.  |
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Bedrock of the Community
United States
19951 Posts |
I see a green spot, that's verdigris for certain. Normally the black part is terminal corrosion and it cannot be removed without damaging the surfaces.
However, as Tunnioc pointed out, it could also be BOTH a carbon spot and verdigris. I've seen verdigris form inside those spots on nickels. Without seeing it in hand, I cannot say if the spots are all corrosion or a mix of carbon/corrosion. Either way, it doesn't really matter because these types are permanent.
VC will improve those spots and halt the corrosion process but it will not fully remove them.
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Pillar of the Community
 United States
6506 Posts |
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Pillar of the Community
United States
6506 Posts |
Anyway, thanks for the advice, guys. I am still very much a beginner at coin conservation, and at identifying the various chemical reactions.
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Bedrock of the Community
United States
74223 Posts |
I would move on, and find one without those spots.
Errers and Varietys.
Edited by Errers and Varietys
02/16/2024 9:38 pm
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Pillar of the Community
United States
6506 Posts |
Well, it sold for $23, which is more than I would have been willing to pay anyway. Pretty remarkable the prices that big sellers get for coins.
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Replies: 9 / Views: 827 |
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Posted 02/16/2024 4:50 pm
