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 Replies: 14 / Views: 1,370 |
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Valued Member
United States
366 Posts |
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Pillar of the Community
United States
3535 Posts |
Isn't that a normal weight for this year?
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Valued Member
 United States
366 Posts |
I thought 3.11 on regular coins of 95% copper. And, I guess only 1 known to exist (not this one) that was struck on a copper planchet giving a weight of 2.5 g?
Edited by NEWmrMatic
03/11/2023 2:49 pm
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Valued Member
United States
366 Posts |
We need some more input from the forum.
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Bedrock of the Community
Canada
21596 Posts |
2.5g is the normal weight for a 1989 cent.
If it was copper it would weigh 2.11g.
You can't have a copper cent weighing 2.5 g
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Bedrock of the Community
 United States
25065 Posts |
NEWmrMatic, what leads you to believe that this 1989-D LMC is struck on 95%-100% copper when the weight indicates that it is a zincoln? It would have to be on a very thin planchet or a much smaller diameter to account for the missing mass if it were copper. Inordinately fascinated by bits of metal with strange markings and figures
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Pillar of the Community
United States
1648 Posts |
You have things backward unfortunately because after 1982 coins should weigh 2.5g or so with the new planchets as yours does, which is normal for this coin, while they should weigh around 3.11g 1982 and earlier. So if you find a 1983 or later with the 3.11g weight (or so) of the 1982 and earlier copper planchets instead of the normal 2.5g then you can post as you did again. Some are known such as this 1989-d on 3.1g copper planchet. Only 2 known. one graded PCGS ms65 sold in 2018 for 7500 through heritage auctions while stacks bowsers auctioned one in same grade in 2016 for 3525. page 104 strike it rich with pocket change 5th edition book for those new who want some things to look for. https://www.coinworld.com/news/us-c...hundred.htmlEdited by datadragon
03/11/2023 3:30 pm
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Pillar of the Community
United States
6526 Posts |
 This coin should weigh 2.5g. And, JimmyD has a typo |
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Valued Member
United States
366 Posts |
Thanks, everyone! @datadragon thank you for correcting me, explanation, & link! Sorry for the confusion, everyone.
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Moderator
United States
95405 Posts |
JimmyD you have a small typo, a copper cent will weigh 3.11g not 2.11g
And for this coin presented: it is a copper plated zinc cent of normal weight (2.5g) as stated above.
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Bedrock of the Community
United States
94367 Posts |
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Pillar of the Community
United States
1648 Posts |
No worries, we all learn ongoing as there is always new info and all of us make errors, including the mint  There are some 'tolerance' differences in weights you should learn, for example they can differ by up to +/- .13 grams with modern cents which can still make it a 'normal' coin unless there is something else going on besides the weight. http://goccf.com/t/280621#2382424 |
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Bedrock of the Community
United States
25065 Posts |
Inordinately fascinated by bits of metal with strange markings and figures
Edited by HondoB
03/11/2023 4:01 pm
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Pillar of the Community
Canada
6244 Posts |
The coin which was certify by ANACS was cooper 3.11 gr. Furthers investigations relive that was somehow an old blank or an 1987 foreign blank was introduce in the production line, and was intentionally.
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Bedrock of the Community
United States
19138 Posts |
At the risk of piling on, a copper cent would come in at 3.11 gr. Matters little, but the coin shown appears to be sporting an early stage of Die Deterioration (obverse)--emergent Ridge Ring. |
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Replies: 14 / Views: 1,370 |
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Posted 03/11/2023 2:40 pm
