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 Replies: 17 / Views: 5,828 |
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Pillar of the Community
United States
2738 Posts |
This half dollar makes no sense. It is simply impossible for a coin to be smaller than normal and yet possess full, strong reeding. It's possible that the edge was shaved off and a second set of false reeding was carved into it.
Error coin writer and researcher.
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Pillar of the Community
United States
2189 Posts |
How much does it weigh? In grams
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Pillar of the Community
 United States
716 Posts |
Quote:
How much does it weigh? In grams 10.2 gram; Quote:
This half dollar makes no sense. It is simply impossible for a coin to be smaller than normal and yet possess full, strong reeding. It's possible that the edge was shaved off and a second set of false reeding was carved into it. I tends to agree with you. I never heard of Denver mint strucking foreign coin for other countries. |
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Pillar of the Community
United States
2738 Posts |
It doesn't matter whether the mint was striking foreign coins or not. A coin struck on an undersized planchet that remains undersized after being struck simply cannot have full reeding all around. The collar has a fixed diameter (30.61mm in half dollars). In order to reach the ridges at all points on the working face of the collar, a coin MUST expand to full diameter. Here's another undersized half dollar with false reeding: http://m.coinworld.com/Articles/fal...f-dollar-serIt also has a false core. I would be happy to personally examine your coin and possibly write it up for Coin World. I do like to feature clever fakes from time to time. Error coin writer and researcher.
Edited by mikediamond
08/30/2013 5:23 pm
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Pillar of the Community
743 Posts |
Why is it not possible for this coin to have been reeded at the mint?
Please post good clear photos of the actual coin. A few angled at the reeding to see if there is any scrape marks etc..
I will admit it looks odd but I don't see why someone would fake something like this. I am finding it very hard to believe.
Edited by 7TF
08/30/2013 6:31 pm
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Pillar of the Community
743 Posts |
It looks like a solid core and not a clad core as the OP has stated.
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Pillar of the Community
743 Posts |
How would one find out all of the different types of foreign coins struck in Denver in 1971?
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Pillar of the Community
917 Posts |
Quote:
Why is it not possible for this coin to have been reeded at the mint? Quote:
The collar has a fixed diameter (30.61mm in half dollars). In order to reach the ridges at all points on the working face of the collar, a coin MUST expand to full diameter. |
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Pillar of the Community
United States
3640 Posts |
First thing that I would like to know is the coins
exact diameter. It does not look to be off a whole lot.
Also the thickness is not off a lot either. Let's see if this is possible. Some normal half stock was punched into just slightly smaller dia. blanks. These blanks were then upset. Then punched. Maybe with normal pressure or just a tad higher pressure. Enough anyway to just get the reeding on it. If you look at the reeding closely is does not look very sharp or deep. I guess I just wanted to know what the cutoff point would be as far as blank/planchet diameter to not get the reeding to show up at all or just enough to show. Meanwhile (i know it's a pain:) but I would count the reeds on both this coin and a normal half. The more I look at the coin the more I see a slightly weaker looking punch. Maybe it's just wear but ? Also maybe along with the above a slightly tighter collar fit. A batch may have been run with these smaller blanks.
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Pillar of the Community
743 Posts |
Thank you Lincoln Guy.
Where did you get the quote stating that it has a fixed diameter of 30.61mm. I would like to read the book or website it came from. Are we 100% certain there is no other way it could have been reeded at the mint?
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Pillar of the Community
United States
2738 Posts |
Error coin writer and researcher.
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Pillar of the Community
United States
716 Posts |
Quote:I would be happy to personally examine your coin and possibly write it up for Coin World. I do like to feature clever fakes from time to time. Sure, Mike. Send me your address to my personal mail box and I will ship the coin to you. |
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Pillar of the Community
743 Posts |
My question is where the information stating that the coin has to be full size to get the reeding. I don't read that on the US Mint website.
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Pillar of the Community
United States
2738 Posts |
It doesn't have to be explicity stated anywhere. It's an unavoidable necessity of the minting process. You might as well ask whether it's necessary for a die to touch a coin in order to generate any design.
Error coin writer and researcher.
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Pillar of the Community
United States
853 Posts |
Quote:
My question is where the information stating that the coin has to be full size to get the reeding. I don't read that on the US Mint website. The reason the coin has to be full size to get the reeding is because the reeding happens during the striking process. If the blank doesen't expand to full size during striking, the reeding is not pressed into the edge. It is the same reason that coins that are broadstruck do not have reeding. The broadstruck coin has a larger diameter due to being struck outside of the collar. If it is struck outside of the collar, there is no reeding present to be pressed into the edge and keep the blank from expanding larger than normal. |
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Replies: 17 / Views: 5,828 |
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Posted 08/30/2013 2:37 pm
