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 Replies: 13 / Views: 1,366 |
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New Member
United States
3 Posts |
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Pillar of the Community
United States
4963 Posts |
 We actually see these fairly often. This is acid damage; the copper core is more susceptible to corrosion that the copper-nickel cladding. @Coop has some helpful graphics that show what I mean, so hopefully he'll see this. In the future, holding your coins with a vise is a big no-no. If it was actually a valuable coin, this could have caused irreparable damage. Just stick to holing them by edge with your fingers. 
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Bedrock of the Community
 United States
94367 Posts |
Is this raised above the rim or sunk into it? to the CCF! |
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Moderator
United States
164408 Posts |
to the Community!
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New Member
 United States
3 Posts |
Coinfrog, it's sunk into the coin. there should be 5 pixs with 3 showing the sunk in space
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New Member
United States
3 Posts |
Numisma it was not a vise. It was between 2 silver dice.
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Bedrock of the Community
United States
94367 Posts |
This might have been done with acid.
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Pillar of the Community
United States
4840 Posts |
Yes, Just acid damage, we see it fairly often.
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Forum Dad
United States
23754 Posts |
Acid damage. See them all the time.
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Moderator
United States
33166 Posts |
Quote:
See them all the time. Indeed. Here is a link to a dime with similar damage that was posted yesterday: http://goccf.com/t/401688
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Moderator
United States
72171 Posts |
I have a quarter just like that.. Edited by Dearborn
06/03/2021 7:42 pm
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Bedrock of the Community
United States
94367 Posts |
Basically, the acid eats away the core faster than the cladding.
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Pillar of the Community
United States
3087 Posts |
Based on the date, it's likely a Katrina coin. The coins that survived the flooding were covered in toxic goop. Most of them were harshly acid-washed. The Zinc cents didn't survive. The copper cents acquired a distinct orange color that is still the give-away after more than 15 years. Nickels became pitted. Clad coins either were lightly corroded or, like yours, had significant damage to the copper layer.
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Bedrock of the Community
United States
17836 Posts |
That particular one, no I probably haven't seen it. But I have seen a lot of others like it. the result of an extended soaking in a corrosive solution that attacks the copper more readily than the copper nickel alloy. Since it attacks the surface of the copper evenly the reeding is retained even as the copper is eaten away.
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Replies: 13 / Views: 1,366 |
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Posted 06/03/2021 2:41 pm
