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 Replies: 11 / Views: 1,495 |
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Valued Member
United States
271 Posts |
The only place I have heard of lamination errors is here, where others have posted pictures of theirs. How is lamination error defined and what causes them?  Some of the black background bled into the rim of the coin. Hopefully it isn't too distracting. Then I looked at the back of the coin and the mint mark looked wierd. Below is a close-up. It looks to me like a repunched mintmark. I think the second punch rotated the MM to the left and moved in northward.  Neither Wexler nor Variety Vista list an RPM that looks anything like this. Is it truly an RPM? Thanks in advance for taking a look. |
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Bedrock of the Community
United States
75368 Posts |
From error-ref: Quote:
Lamination errors are planchet errors in which the surface of a coin cracks and flakes. It is generally believed that lamination errors are caused by contaminants in the alloy that cause the metal to separate along the horizontal plane. https://www.error-ref.com/lamination-cracks/I am not seeing an RPM on the mint mark. I am only seeing circulation wear and flattening. Maybe a broken post too?  Errers and Varietys.
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Moderator
 United States
98847 Posts |
nice defective planchet, but no, not seeing an RPM - just circulation flattening.
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Moderator
United States
56855 Posts |
Not an RPM. Where exactly is the lamination? At 3K? John1  |
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Pillar of the Community
United States
6640 Posts |
Quote:
Where exactly is the lamination? At 3K? 3 to 5 I believe |
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Valued Member
 United States
271 Posts |
Quote:
3 to 5 I believe What do the numbers mean in reference to the lamination errror? Thanks to everyone for your post. I understand now why it is not an RPM. Edited by smauggie
08/18/2024 07:20 am
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Bedrock of the Community
United States
19267 Posts |
The numbers can be thought of as a clock reference--3 o'clock to 5 o'clock. This information provides a locational reference.
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Valued Member
United States
271 Posts |
Ahh, of course. Thanks for explaining.
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Bedrock of the Community
United States
94367 Posts |
It's customary to use the letter K in front of these numbers - such as K3 to K5, or similar.
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Pillar of the Community
 United States
6610 Posts |
Looks like a retained lamination that got folded over around K5. Pretty neat.
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Valued Member
United States
271 Posts |
I learn so much when you guys stop in and share the knowlege about the hobby, especially errors. Reading the error ref website reminds me how little I know so far, but I keep reading because I want to learn.
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Moderator
United States
190135 Posts |
Interesting find.  |
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Replies: 11 / Views: 1,495 |
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Posted 08/18/2024 02:41 am
Uncirculated American Silver Eagles 
