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 Replies: 15 / Views: 950 |
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New Member
United States
6 Posts |
Hello, I'm looking for some information on a clamshell planchet error... How do I know that's what I'm looking at, how can I tell if the error is authentic & not 'man made' so to speak, & who do I inform if I have an error never before seen? *** Edited by Staff to Add Year / Mintmark / Denomination to Title. Titles are Important! *** Edited by Curiousnms
02/16/2022 04:13 am
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Pillar of the Community
United States
5832 Posts |
 Start by uploading some good sharp pictures of the coin, obverse, reverse and in this instance, the close up area where the clamshell in question. |
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Bedrock of the Community
Canada
24885 Posts |
To the Forum. |
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New Member
 United States
6 Posts |
Other than some strange discoloration, the front & back aren't disfigured in anyway, that I can tell, I'm having trouble loading those images.
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Moderator
 United States
56855 Posts |
. What coin? What date? Looks like acid damage to me with that photo. John1  |
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New Member
United States
6 Posts |
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New Member
United States
6 Posts |
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Bedrock of the Community
Canada
21626 Posts |
You have posted two photos of the obverse and none of the reverse.
It is not a Clamshell but as John1 stated, it could be acid damage as the copper core would be eaten away first.
Edited by JimmyD
02/16/2022 07:08 am
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Moderator
United States
34426 Posts |
@curi, first welcome to CCF. Second, we seem this sort of damage quite often here and ascribe it to the clad coin being immersed in an acid that preferential attacks the copper. If you weigh your quarter, it should be underweight.
"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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New Member
United States
6 Posts |
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New Member
United States
6 Posts |
Yes, you can tell by holding it, it is light. However the pictures dont do it justice. Thank you for your help!
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Moderator
United States
97062 Posts |
an acid dipped quarter. the copper is much softer than the copper/nickel cladding and will dissolve quicker than the core.
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Bedrock of the Community
United States
94367 Posts |
Agree, acid trip. to the CCF! |
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Moderator
United States
189142 Posts |
to the Community! |
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Pillar of the Community
United States
5832 Posts |
Not a clamshell error, you can see the corrosion around the edge.
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Bedrock of the Community
United States
62064 Posts |
 That acid is hungry and like copper. |
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Replies: 15 / Views: 950 |
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Posted 02/16/2022 03:36 am
