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Is 1983 D LMC 2.66gram a weight tolerance for Zinc?

 
 
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 Posted 08/09/2018  03:02 am Show Profile   Bookmark this topic Add oyaji to your friends list Get a Link to this Message
I found this 1983 D LMC weighing 2.66grams each time I put it on the scale. I am aware that Zinc has a +/- 0.10grams tolerance meaning a weight limit of 2.40gr to 2.60gr. However, mine keep reading at 2.66grams each time I place it on the scale. Any thoughts besides dirt accumulation?






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 Posted 08/09/2018  04:33 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Mint tolerances is +/- .13 grams.
John1
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
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 Posted 08/09/2018  10:30 am  Show Profile   Bookmark this reply Add Chase007 to your friends list Get a Link to this Reply
A normal coin within tolerance.
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 Posted 08/09/2018  11:51 am  Show Profile   Check Errers and Varietys's eBay Listings Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
It's normal. It's still within Mint tolerance.
Errers and Varietys.

More information about Die Deterioration? http://goccf.com/t/317950

Retired U.S. Mint Coin Die Set information. http://goccf.com/t/302961
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 Posted 08/09/2018  11:54 am  Show Profile   Bookmark this reply Add Halo1st to your friends list Get a Link to this Reply
Reference I'm using shows,

+/- .13 grams, (1873 - 1982) for copper/bronze. same tolerance for the 1943 zinc-plated steel cents.
+/- .10 grams, (1982 - present) for copper-plated zinc.

Any foreign substance on coin can add on to weight. Can't tell in the current images whats on the coins surface. Maybe dirt, stained or toned.

If surface is clean and scale is calibrated, maybe possible planchet evolved from a slight rolled thick stock or a bit heavy on the copper plating. Thanks, Doug.
Second opinions are always recommended. Rookies thoughts!
Backup data often or good luck with the recovery process..... SME advice!
Edited by Halo1st
08/09/2018 11:58 am
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 Posted 08/09/2018  1:45 pm  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply
Not quite within tolerance, but no one is going to get worked up over a coin that is just .06 grams out of tolerance. When you find a cent that is .4 grams out of tolerance then people will start to take notice.
Gary Schmidt
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 Posted 08/09/2018  3:07 pm  Show Profile   Bookmark this reply Add Chase007 to your friends list Get a Link to this Reply

Quote:
Not quite within tolerance


Agreed, but as mentioned difference is quite marginal.
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 Posted 08/09/2018  5:57 pm  Show Profile   Bookmark this reply Add Jim0815 to your friends list Get a Link to this Reply
I have a 1983 P that weighs 2.70 gms. Just heavily plated. Yours and mine are within tolerance.
Edited by Jim0815
08/09/2018 5:58 pm
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 Posted 08/12/2018  04:40 am  Show Profile   Bookmark this reply Add oyaji to your friends list Get a Link to this Reply
Thank you all for the education...cheers:)
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 Posted 08/12/2018  04:45 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Halo1st,
Where did you see that reference? I would like to read up on it. Thanks.
John1
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
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 Posted 08/12/2018  10:14 am  Show Profile   Bookmark this reply Add Halo1st to your friends list Get a Link to this Reply
John1, from a past copy of Coin World Almanac. PM sent. Thanks, Doug.
Second opinions are always recommended. Rookies thoughts!
Backup data often or good luck with the recovery process..... SME advice!
Edited by Halo1st
08/12/2018 10:16 am
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