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Replies: 15 / Views: 939 |
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New Member
United States
28 Posts |
Hello all! I found a 1985 LMC looking through some coins today, and it appears to not have any copper plating. I was wondering if anyone knows what could have happened to this coin. PMD, mint error, something else? I haven't seen this before. Also, it doesn't appear to be tampered with in terms of scratches or noticeable melt marks. I tested, and it is not magnetic. Unfortunately, I do not have a scale, but it doesn't seem to be any thinner than a normal copper plated penny. Any and all insights are appreciated!  
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Bedrock of the Community
United States
19165 Posts |
An accurate weight to two decimal places would give us a solid clue about what the issue is. Unfortunate that a scale isn't readily available.
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Bedrock of the Community
United States
74346 Posts |
The weight of your coin would help us. I'm thinking PMD. The coin's plating might have been removed.
Errers and Varietys.
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New Member
 United States
28 Posts |
I will hold onto it until I can get my hands on a precise scale. Just curious, what would the weight say about what happened to the coin? Are there different scenarios for what could have happened based on the weight?
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Bedrock of the Community
United States
94367 Posts |
  to the CCF!
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Bedrock of the Community
United States
19165 Posts |
Coin will weigh less than spec if it is missing it's copper plating.
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Moderator
 United States
96451 Posts |
a normal zinc cent will weigh 2.5 grams, a significant loss of weight will tell if the plating is missing.
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Pillar of the Community
 United States
1262 Posts |
It appears that there must have been a lot of school chemistry class experiments on removing the copper from zinc cents back in the 80's. We sure do see a lot of these on CCF.
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Pillar of the Community
United States
1493 Posts |
If the copper is fully missing it would account for 2.5% of the mass, or about a 0.06 gram reduction from the normal value of 2.5 grams. However, that wouldn't tell you WHY the zinc is missing, as it could have been a scientific experiment or something similar.
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Pillar of the Community
United States
4135 Posts |
Texture and color makes me think it is a chemical that has been induced on coin.
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New Member
 United States
28 Posts |
Thanks for all the info, everyone! Based on the responses, I am assuming the copper plating was chemically stripped, but I might still hold onto it just for fun 
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Bedrock of the Community
 United States
10547 Posts |
This is the OP's coin right? A 1995 cent. And to me this looks copper........?  
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Pillar of the Community
 United States
6568 Posts |
 Mostly looks copper plated to me
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Moderator
 United States
56855 Posts |
micrba, Did you post the correct pic? The 1995 looks like the one you posted with a scratch on it,and your title reads 1985  John1 
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Pillar of the Community
 United States
1465 Posts |
The original picture was a 1985, but the OP used the same file name to post the 1995 in a different topic.
@micrba each picture uploaded requires a unique name.
Edited by igwt79 09/28/2024 06:04 am
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Moderator
 United States
96451 Posts |
yes, at one point the correct image *was here, but when he posted in another topic http://goccf.com/t/471126)He apparently use the same file name. to the OP: Every time you upload an image please make sure it has a unique file name - don't re-use them over and over again.
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Replies: 15 / Views: 939 |
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