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1999 P Connecticut Quarter 6.3 Grams?

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Dearborn's Avatar
United States
99100 Posts
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Dearborn's Avatar
United States
99100 Posts
 Posted 10/24/2022  6:47 pm  Show Profile   Bookmark this reply Add Dearborn to your friends list Get a Link to this Reply
Thanks for the extra images of the side for comparison. - to me it looks like it could be a quarter on half-dollar stock. If true, then congrats.
Has anybody worked out that math problem yet?
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 Posted 10/24/2022  9:36 pm  Show Profile   Bookmark this reply Add mikediamond to your friends list Get a Link to this Reply
The OP's quarter was struck on a planchet derived from rolled-thick quarter dollar stock. If it was half dollar stock, it would weigh around 7 grams (such coins do exist).
Error coin writer and researcher.
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Petespockets55's Avatar
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5804 Posts
 Posted 10/24/2022  9:55 pm  Show Profile   Bookmark this reply Add Petespockets55 to your friends list Get a Link to this Reply
The coin in question is only about 11.3% above normal weight so it's most likely just rolled thick stock, but ..... someone just had to ask the following:


Quote:
Has anybody worked out that math problem yet?

(Bad Dearborn. You shouldn't be asking old farts to do high school math!)

I think I have. The weight for a quarter planchet cut from half dollar stock should be 7.1 grams. (But without mint tolerances considered.)

Area of a circle- .... A = 3.14 x R(Squared)

Quarter: (R=12.13) Area= 462.02

Half: (R=15.305) Area= 735.52
(Very hard to write these equations without a numerical keypad.)

462.02 = X
735.52 = 11.34 g.

462.02 x 1134 g. = X
735.52

5239.31 = X
735.52

7.12 grams = X (Final Answer!)

ps. I found a CoinWorld article on wrong stock coins and how to calculate them, after going through the exercise above.
https://www.coinworld.com/news/us-c...ting-wr.html

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Edited by Petespockets55
10/24/2022 9:58 pm
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Cujohn's Avatar
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 Posted 10/25/2022  2:47 pm  Show Profile   Bookmark this reply Add Cujohn to your friends list Get a Link to this Reply
Pete, they told me there was no math involved when I signed up.
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merclover's Avatar
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10635 Posts
 Posted 10/25/2022  4:38 pm  Show Profile   Bookmark this reply Add merclover to your friends list Get a Link to this Reply
A quarter cut from heavy rolled stock. Within limits, no premium..
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