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 Replies: 13 / Views: 1,256 |
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New Member
United States
33 Posts |
This coin has perfecty straight lines running on the obverse and reverse of the coin. I think it is PMD but I can't think of anything that would cause "wear" like that. It weighs 11.17g Could this be some kind of error?    |
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Bedrock of the Community
United States
62064 Posts |
 I can't tell for sure, but it may have been polished with a dremel tool. Die scratches on a die would only affect the fields. You coin appears to be weaken in design because of the polishing. So I'm leaning towards PSD. Edited by coop
07/11/2015 12:41 pm
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Valued Member
United States
381 Posts |
I agree with coop, someone probably put it in a dremel tool. Or they might have used sandpaper.
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Pillar of the Community
United States
3330 Posts |
Are these lines raised or incuse? Maybe that is a stupid question - if it were sandpaper or Dremel, I know they would be both! However, it ought to be possible to tell where the original surface had been - in the valley or the raised portion? Also, to CCF Edited by Pete2226
07/11/2015 10:31 am
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Rest in Peace
United States
17900 Posts |
Its tough to be sure with these photos. Is there some tiny pitting in the fields? Perhaps an experiment trying to learn Whizzing. |
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New Member
 United States
33 Posts |
Incuse I don't see any pitting anywhere. Actually now that I look at it more, it appears that there is small pitting in front of JFK's nose. Or at least I think its pitting...   Edited by CoinHoarder64
07/11/2015 10:59 am
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Pillar of the Community
United States
3330 Posts |
Is there any possibility that the lines could be planchet striations?   |
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Pillar of the Community
United States
6478 Posts |
That is what I thought at first, but the rims indicate that it was fully struck. It is some form of PSD. |
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Pillar of the Community
United States
3330 Posts |
Quote:
the rims indicate that it was fully struck What should the rims look like with planchet striations? |
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Pillar of the Community
United States
946 Posts |
On the last picture at about 7 oclock there are scratches on the rim that follow suit into the fields. I think someone took sandpaper to this and then it went back into circulation for a bit and wore down the coin a bit more.
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Pillar of the Community
United States
3330 Posts |
I was just reading about planchet striations on the Ike Group. There is a rather lengthy discussion. One take away I have is that they are incuse. Another is that when the striation lines meet the vertical side of a device, they continue up the vertical side without break and then they continue across the device without break. A third take away is the lines run in the same direction on the Obverse as on the Reverse. I cannot really tell from these photos...does that description apply here or not? If it does - then it must be planchet striations and if not, then I am thinking something like sandpaper. Edited by Pete2226
07/11/2015 2:19 pm
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Rest in Peace
United States
17900 Posts |
If you blow up the last picture you can see that the lines DIG (and I mean seriously DIG) into the rims. That's not stiration.
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Pillar of the Community
United States
6478 Posts |
Planchet striations are smoothed out by a full strike, so no way they are planchet striations.
Edited by SilverStackerKid
07/11/2015 3:02 pm
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Bedrock of the Community
United States
94367 Posts |
 Someone just had too much time on their hands. |
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Replies: 13 / Views: 1,256 |
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Posted 07/11/2015 09:38 am
