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 Replies: 32 / Views: 3,382 |
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Valued Member
United States
192 Posts |
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Pillar of the Community
United States
4135 Posts |
Your picture looks like the coin gold color on it? If so it could be plated.
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Pillar of the Community
 United States
6499 Posts |
That's a relatively normal toning color for the 80% silver, 20% copper cladding. It could still be plated, of course.
I would be curious to see images of the edge, specifically if any layers could be seen. The 90% silver coins from 1964 had a mass of 12.5g. So we might consider a transitional planchet as a possibility here.
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Bedrock of the Community
United States
74090 Posts |
Could have been plated.
Errers and Varietys.
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Moderator
 United States
188283 Posts |
Interesting find. Well outside the tolerance (11.1g to 11.9g). Not sure how much plating can add. A look at the edge is needed.  |
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Pillar of the Community
United States
6499 Posts |
My gut feel is that you could not add enough plating mass to be that heavy without visibly distorting the devices.
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Moderator
United States
188283 Posts |
Quote:
My gut feel is that you could not add enough plating mass to be that heavy without visibly distorting the devices. I have to agree with your gut here. |
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Bedrock of the Community
United States
94367 Posts |
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Pillar of the Community
United States
6499 Posts |
I tried all sorts of searches for rolled thick Kennedy half dollars in NGC slabs. I feel like I have seen some, but all I found was quarters and dimes. Maybe I am using the wrong keywords in Google—over weight, thick, thin, planchet, rolled, and various combinations. |
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Moderator
United States
188283 Posts |
I considered blanks punched from the roll stock for the next denomination up (heavy) or down (light). Think of a quarter punched from half dollar stock (heavy) or dime stock (light). Problem is, this example would be a half dollar from dollar stock—and the 40% silver Ike was still four years away.  It seems more likely this was minted on a 90% silver blank. It is well within tolerance (12.241g to 12.759g). |
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Pillar of the Community
United States
2848 Posts |
Quote:
It seems more likely this was minted on a 90% silver blank. It is well within tolerance (12.241g to 12.759g). .... Wouldn't that be cool? |
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Pillar of the Community
United States
599 Posts |
Assuming, of course, the scale was calibrated correctly.
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Moderator
United States
188283 Posts |
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.... Wouldn't that be cool? That is an understatement!   |
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Moderator
United States
188283 Posts |
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Assuming, of course, the scale was calibrated correctly. Easy to weigh a few more half dollars to see any trends.  |
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Pillar of the Community
United States
6499 Posts |
The point about scale calibration is an intelligent observation. Many a chemistry experiment has gone awry that way. =)
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Moderator
United States
95806 Posts |
Would still like to see an edge on image here.
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Replies: 32 / Views: 3,382 |
Posted 11/27/2024 09:09 am
