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 Replies: 19 / Views: 3,487 |
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Pillar of the Community
 United States
6116 Posts |
No acetone or actually anything at all so far as testing it. When I realized it was something unfamiliar I put it aside and figured to wait to hear from folks who know more than I do about such things. I have no plans on harming the coin, but I suppose acetone would be a reasonable test to see what, if anything, is stuck on it. However, using my 30X stereo scope I find nothing to lead me to believe that the coin has anything going on other than an unusual texture to the metal.
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Pillar of the Community
Australia
7096 Posts |
Can you use your scope and zoom in on that small rubbed area on the Queens jaw and post an image ?
Edited by trout1105
01/06/2017 5:20 pm
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Pillar of the Community
United States
6116 Posts |
Here is a shot of the jaw with the earring for orientation/scale and a random shot from a bit further out showing the pattern across the coin from the relief to the field. All looks pretty similar and the discontinuity around the jaw seems like a normal light rub spot on a high-point feature.   |
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Pillar of the Community
Australia
7096 Posts |
I am thinking that this coin may have been sandblasted  |
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Pillar of the Community
United States
4233 Posts |
Struck through counterfeit dies? I hate to imply it, but how does this junk end up on a supposedly proof coin? Same with the obverse between Z and A and between H and II.  |
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Pillar of the Community
Canada
1223 Posts |
Have you tried a magnet on it.
Cheers, Bill
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Pillar of the Community
Canada
1463 Posts |
That's a weird one. I suspect come kind of harsh chemical. Sure doesn't look silver though
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Pillar of the Community
United States
6116 Posts |
Yes, tried the magnet. No, it is not an iron or iron alloy. From the comments I am thinking. First, it does seem like it has the qualities of a counterfeit, but also seems silver so who would do that? Second, assuming it is silver I don't think it has been mechanically cleaned at all, but dipped in something might be possible. But the pattern is very even over the whole coin so would have to have been a stable long soak. Maybe something as simple as salt water. Third, I'm not that familiar with the proof strike for these coins, but this thing just doesn't strike me as a proof strike in any way (see also the strike through noted above). So, could this have been a test strike for the pattern type done on a silver planchet at the mint?
Still guessing!
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Pillar of the Community
United States
6116 Posts |
Forgot to mention, I did the ice cube test and this thing passed easily as silver.
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Pillar of the Community
Canada
5324 Posts |
Light blast with soda ash or something similar
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Pillar of the Community
Canada
798 Posts |
This coin has been sandblasted. 100% guaranteed.
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Pillar of the Community
Canada
6768 Posts |
Here pictures of (ex)-mine coin: (sorry, the images are bit blurry) [so surely the coin in the original post has been PMD-ed]   Edited by Silveroid
01/08/2017 12:06 am
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Pillar of the Community
Canada
2845 Posts |
Quote:
First, it does seem like it has the qualities of a counterfeit, but also seems silver so who would do that?
I'm curious where'd you get it from? Did it come with the RCM case and COA as shown in Silveroid's photo? Not always an indication of authenticity, but counterfeiters typically don't go to the trouble of including the packaging. The pewter appearance, rough looking texture mimics that of a cheap Chinese knockoff. Any experienced dealer should be able to give you an answer by looking at the coin in hand, |
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Pillar of the Community
United States
6116 Posts |
It was in an auction from a collection that had all quality coins, properly labeled and nothing was suspicious. This was one of the other coins:  I trust the source, so if counterfeit they didn't know it. |
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Pillar of the Community
United States
2408 Posts |
I wonder if a TPG could certify this... Maybe an Error of some kind? |
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Replies: 19 / Views: 3,487 |
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Posted 01/06/2017 5:20 pm
