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Replies: 16 / Views: 1,232 |
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New Member
United States
31 Posts |
Is this a mint error or someone did something to this ?  
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Pillar of the Community
 United States
6526 Posts |
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Bedrock of the Community
United States
19131 Posts |
Yes, appears to be an acid issue. Suggest not holding coins with metal clamps/tools.
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New Member
 United States
31 Posts |
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Pillar of the Community
 United States
6526 Posts |
Quote: Suggest not holding coins with metal clamps/tools. I would agree, in most cases 
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Pillar of the Community
United States
4135 Posts |
It made me cringe when I saw holding that coin with metal object.
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Bedrock of the Community
United States
94367 Posts |
Acid trip, far out.  to the CCF!
Edited by Coinfrog 11/16/2024 09:08 am
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Pillar of the Community
 United States
6479 Posts |
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Pillar of the Community
United States
599 Posts |
Quote: isn't it also possible that it's a 1970-D quarter struck on dime stock? Good point. If that were the case, the planchet would be the thickness of a dime and not a quarter. This one looks to me like it's the thickness of a quarter, but the OP certainly can test it with a gauge or do a side-by-side comparison.
Edited by sickpuppy78501 11/16/2024 10:39 am
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Bedrock of the Community
 United States
25042 Posts |
The concave edge indicates acid damage - the inner copper layer was eaten away more than the outer cladding.
Inordinately fascinated by bits of metal with strange markings and figures
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Pillar of the Community
 United States
6479 Posts |
Hondo, that would make sense to me.
The thickness should be compared to a quarter and a dime anyway, just in case.
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Pillar of the Community
United States
3535 Posts |
Agree, the copper layer has been dissolved at a slightly higher rate than the clad layer. Points to acid erosion.
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Bedrock of the Community
United States
73857 Posts |
Agreed, acid damage. PMD.
Errers and Varietys.
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Bedrock of the Community
 United States
10492 Posts |
Quote: Suggest not holding coins with metal clamps/tools. Had to pull it out of the acid somehow! 
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Moderator
 United States
95254 Posts |
please don't hold any coins with finger/toe nail cutters - you will only damage a coin that way.
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Pillar of the Community
 United States
5770 Posts |
Quote: please don't hold any coins with finger/toe nail cutters - you will only damage a coin that way. I agree 100%. (Seeing hose clippers made me cringe.)
Words of encouragement are one of the major food groups. We need to consume them regularly to thrive and grow.
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Replies: 16 / Views: 1,232 |