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 Replies: 21 / Views: 5,051 |
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New Member
 United States
15 Posts |
I tared, and reset & tested with weights about 4 times to make sure. I have 2 sets of scales and both said the same. I did not try the tissue test though because of the copper around the edge and the P mint mark. |
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New Member
United States
15 Posts |
I have also read that there were at least 2 experimental planchets used in 99. The coins struck on them were slightly thicker and weighed between 5.9-6.3grs and gold colored or had a slight green hue. This one is definitely not one of the gold ones. All the coin dealers I've spoken with only deal in silver or gold coins. I will take any suggestions if anybody knows someone or a shop I can bring it to around ft.lauderdale fl.
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Pillar of the Community
 United States
7174 Posts |
Going to be watching this. Too heavy to be a regular quarter. Might be half stock, someone will be along shortly to tell us what half stock would weigh.
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Moderator
United States
96149 Posts |
Quote:
My question was about quarter planchets cut from half dollar stock. It wouldn't be the same weight as a half dollar, as it would be punched to quarter planchet size. I am not saying that's what the poster's coin is, just asking a question to see if that is a possibility. While rare, such errors have happened. Oh ok, now I understand. Can you put up another picture of that quarter with a half dollar coin (edge on) so we can compare the thickness of the 2? |
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Moderator
United States
96149 Posts |
Quote:
Might be half stock, someone will be along shortly to tell us what half stock would weigh half dollar stock at quarter dollar size - that will be a complex math exercise to do.. Way beyond me... |
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Pillar of the Community
United States
7174 Posts |
Dearborn, I wasn't thinking of you.  |
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New Member
United States
15 Posts |
I will have that picture uploaded for you by this afternoon.
Edited by Kimby0310
10/24/2022 05:38 am
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New Member
United States
15 Posts |
Here are the pics I got of the 1999 P quarter next to a 1977 P Kennedy half dollar and a 1072 D Kennedy half.    For reference, the quarter is in the middle. In the 2nd pic the quarter is on the left Edited by Kimby0310
10/24/2022 4:10 pm
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New Member
United States
15 Posts |
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Moderator
United States
96149 Posts |
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Dearborn, I wasn't thinking of you Boy, and I ever glad for that. |
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Moderator
United States
96149 Posts |
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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Pillar of the Community
United States
2737 Posts |
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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Pillar of the Community
United States
5774 Posts |
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.htmlWords of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
Edited by Petespockets55
10/24/2022 9:58 pm
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Pillar of the Community
United States
7174 Posts |
Pete, they told me there was no math involved when I signed up.  |
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Bedrock of the Community
United States
10635 Posts |
A quarter cut from heavy rolled stock. Within limits, no premium..  |
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Replies: 21 / Views: 5,051 |
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Posted 10/23/2022 7:35 pm
