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 Replies: 11 / Views: 1,566 |
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Valued Member
United States
119 Posts |
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Moderator
 United States
34427 Posts |
It is a little below the target weight of 3.11 g, but what makes you think that the alloy is off @n2lr?
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Valued Member
 United States
119 Posts |
I saw a video on youtube about a 1946 penny that is improper alloy that weighs between 2.9 and 3.00 grams
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Bedrock of the Community
United States
62064 Posts |
The weight can vary because of the thickness of the metal, or circulation wear on the coin. But the metal should be not the issue.
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Moderator
United States
34427 Posts |
Ok yes I understand. As mentioned by @coop, I would sooner believe that the weight is a little low due to the planchet being underweight and/or circulation wear before chasing the possibility of an incorrect alloy mix. With that said, you certainly could reach out to a local university to see about non-destructive elemental analysis testing.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Bedrock of the Community
United States
62064 Posts |
But I feel it is in the acceptable weight range.
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Valued Member
United States
119 Posts |
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Pillar of the Community
7234 Posts |
Quote:
I saw a video on youtube Didn't see that one coming!  Just an under weight planchet. Whoever set the tension on the stock roller made it a little light but well within tolerance! Edited by Mark1959
01/21/2019 8:59 pm
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Moderator
United States
34427 Posts |
3.11 g - 0.13 g = 2.98 g. I think that we are saying the same thing @coop.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Pillar of the Community
United States
751 Posts |
A rolling Mill used to size metal to a given thickness can easily have sections thicker or thinner than specs. As the Rolling Mill is running slippage, power fluctuations can cause a variation momentarily of the rolled stock. The roll is not normally stopped until the entire roll has bee run. The operator will clip a sample and size it for tolerance. That will HOPEFULLY be a sample of the average of the roll, but you can have small sections of the roll thicker or thinner, and most likely will not be discovered until a situation like we have with this coin manifests itself, maybe YEARS later.
Dan
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Valued Member
United States
119 Posts |
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Moderator
United States
14463 Posts |
I have added it this time, but you should include the date, mintmark, and the denomination in your titles.
You should include the date, mintmark, and the denomination in your titles.
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Replies: 11 / Views: 1,566 |
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Posted 01/21/2019 8:45 pm
