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1983 Penny Weighing Only 2.1 G

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Pillar of the Community

United States
1901 Posts
 Posted 09/15/2017  4:20 pm Show Profile   Bookmark this topic Add Mrzllewellyn to your friends list Get a Link to this Message Number of Subscribers
I found a 1983 penny that fluctuates from 2.0 to 2.1 grams it don't look like wear to me but you guys will know thanks in advance
1983-Penny-Weighing-Only-2.1-G
1983-Penny-Weighing-Only-2.1-G
1983-Penny-Weighing-Only-2.1-G
1983-Penny-Weighing-Only-2.1-G
1983-Penny-Weighing-Only-2.1-G
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RoyCoinBoy's Avatar
United States
1609 Posts
 Posted 09/15/2017  7:08 pm  Show Profile   Bookmark this reply Add RoyCoinBoy to your friends list Get a Link to this Reply
Based on the mushiness of the features, it's probably an underweight planchette. Nice find.
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Halo1st's Avatar
United States
2775 Posts
 Posted 09/15/2017  7:11 pm  Show Profile   Bookmark this reply Add Halo1st to your friends list Get a Link to this Reply
Seems the coin stock was rolled a bit thin prior to punching blanks. Nets you a slightly underweight coin. Thanks, Doug.
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Crazyb0's Avatar
10197 Posts
 Posted 09/15/2017  8:03 pm  Show Profile   Bookmark this reply Add Crazyb0 to your friends list Get a Link to this Reply
The mushiness of details does indicate a thin planchet. Not enough was in the collar to really be formed and pressed.
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Errers and Varietys's Avatar
United States
74584 Posts
 Posted 09/15/2017  8:05 pm  Show Profile   Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
Errers and Varietys.
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Mark1959's Avatar
7234 Posts
 Posted 09/15/2017  8:29 pm  Show Profile   Bookmark this reply Add Mark1959 to your friends list Get a Link to this Reply

Quote:
Struck Through Grease possibly?


Think about it - Struck Through Grease will not make the planchet weigh any less.
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Errers and Varietys's Avatar
United States
74584 Posts
 Posted 09/15/2017  8:47 pm  Show Profile   Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
Yeah you're right Mark. Underweight Planchet.
Errers and Varietys.
Pillar of the Community
United States
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 Posted 09/15/2017  10:46 pm  Show Profile   Bookmark this reply Add Mrzllewellyn to your friends list Get a Link to this Reply
Is that a common error?
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Errers and Varietys's Avatar
United States
74584 Posts
 Posted 09/15/2017  11:01 pm  Show Profile   Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
I am not sure how common it is, but your's is a keeper in my book.
Errers and Varietys.
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Mark1959's Avatar
7234 Posts
 Posted 09/15/2017  11:07 pm  Show Profile   Bookmark this reply Add Mark1959 to your friends list Get a Link to this Reply
Definitely a keeper, put it in a 2X2 with the information written on it for safe keeping. And Light planchets are found every so often but definitely not common, especially nowadays with all the computer controlled machines used to produce them.
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United States
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 Posted 09/15/2017  11:08 pm  Show Profile   Bookmark this reply Add Mrzllewellyn to your friends list Get a Link to this Reply
I'm definitely going to keep it unless it's worth millions then I might let it go lol just kidding but yes definitely a keeper in my book too
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United States
1901 Posts
 Posted 09/16/2017  01:19 am  Show Profile   Bookmark this reply Add Mrzllewellyn to your friends list Get a Link to this Reply
So question is there any place that authenticates errors and slabs them? Just a question or do you guys just keep a book with 2x2s in them with whatever is wrong written on them
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macmercury's Avatar
United States
5832 Posts
 Posted 09/16/2017  01:50 am  Show Profile   Bookmark this reply Add macmercury to your friends list Get a Link to this Reply
.4 gram under weight. I am not sure how significant it has to be underweight before it bring the premium.
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United States
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 Posted 09/16/2017  03:21 am  Show Profile   Bookmark this reply Add Mrzllewellyn to your friends list Get a Link to this Reply
Yeah idk either to bad it didn't go up .4 or so grams... lol then it would have been copper ... but idk that seems like a lot under weight to me though it fluctuates from 2 to 2.1
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United States
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 Posted 09/16/2017  06:55 am  Show Profile   Bookmark this reply Add Mrzllewellyn to your friends list Get a Link to this Reply
What if this is a thin copper planchet? How do I test it to be copper or zinc if the weight is all jacked up? Lol I doubt it but a man can dream
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Pertinax's Avatar
United Kingdom
2133 Posts
 Posted 09/16/2017  07:01 am  Show Profile   Bookmark this reply Add Pertinax to your friends list Get a Link to this Reply
The standard tolerance test to silver planchets applied by The Royal Mint during the 19th century was that they should be within 2.5% of the standard weight (the weight specified in legislation).

I would have expected a much lower weight variation due to the expertise in producing planchets in the late 20th century and the expertise of the US Mint.

However, a 2.5% variance of a 2.5g cent weight, should lead to planchets being between 2.4375g and 2.5625g.

A cent weighing 2.1g is significantly under weight.
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