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All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins

Thin Planchet Or PMD

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jdavis18
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 Posted 03/22/2014  3:55 pm Show Profile   Bookmark this topic Add jdavis18 to your friends list Get a Link to this Message Number of Subscribers
So I found this 1976 LMC that weigh 2.1 grams (Severely underweight). My first thought was environmental damage due to the weakness and the slight discoloration. However, the strike appears to be uniform across the entire coin and the diameter is the same as ever other LMC.

So I'm stumped and would love opinions and here are some pictures.

Thin-Planchet-Or-PMD

Thin-Planchet-Or-PMD

Thin-Planchet-Or-PMD
coop
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 Posted 03/22/2014  4:04 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Dipped into acid. Acid reduces the thinness and diameter. They used to do this in the 1960's in science class to get a soda for one cent (10oz bottles were 10 cents). If they found a 7 cent machine 70z bottles) they got Three Cents back to make more of them.
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All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins



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