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1988 D LMC/Missing Copper Layer

 
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Author Previous TopicReplies: 4 / Views: 350Next Topic  
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United States
1 Posts
 Posted 04/17/2021  12:39 am Show Profile   Bookmark this topic Add Shady80 to your friends list Get a Link to this Message
I also found a 1988 D like this but its not as smooth and uniform as tours. You can see where copper was on it or was tried to be plated but failed. The weight is 2.4 grams and its not magnetic. Can someone help me out with this aswell?
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19530 Posts
 Posted 04/18/2021  8:39 pm  Show Profile   Bookmark this reply Add Spence to your friends list Get a Link to this Reply
@shady, first welcome to CCF. Second, rather than reanimate an old thread, best practice is to start a new one for each new coin. Isn't a big deal at all though. For reference, here is a link to the original thread:

http://goccf.com/t/373992
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 Posted 04/18/2021  8:55 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
While your coin is showing gray, this can be achieved by coating the coin with zinc. There are YouTube videos on how this is done. But a closer View of the surface would probably show an example like this one:

Note on this coin your can see the zinc bumps that were plated over (before they knew what the issue was back then) are still present. Just coated by zinc. You can see see a split that is showing the copper plating. These are faked errors, sold to the un-liery on eBay.
The real examples show smooth fields on the coin:

Not the rough finish on the faked missing copper plating coins.
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 Posted 04/18/2021  9:23 pm  Show Profile   Bookmark this reply Add merclover to your friends list Get a Link to this Reply
Environmental tarnishing/staining can cause discolouration, as can chemical or heat stripping of the outer copper layer. Many ways your coin could be damaged, all are post mint damage ( PMD) and result in no premium I'm afraid. Keep looking!

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United States
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 Posted 04/18/2021  9:34 pm  Show Profile   Bookmark this reply Add Sgtclough to your friends list Get a Link to this Reply
Look for a line of dots . I thought I had on with a clad error . But basically a science experiment.
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