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 Replies: 44 / Views: 3,669 |
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Pillar of the Community
 Canada
9865 Posts |
50% solution of nitric acid ?
"Dipping" is not considered cleaning...
-from PCGS website
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Pillar of the Community
Canada
1622 Posts |
Perhaps it was just not well struck due to the different size (i.e., thinner) planchet?
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New Member
 Canada
20 Posts |
#8310;  |
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New Member
Canada
20 Posts |
This is the back of the penny-its shinier than the front
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New Member
Canada
20 Posts |
I haven't cleaned it at all either
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New Member
Canada
20 Posts |
I like the idea of XRF imaging. And yes there's mining places around here, I'd have to probably call over 200 companies. They do put out a mining book with a list of names. So maybe one will have a XRF machine. And sorry I don't have the diameter, but will try and get that measured accurately. Back in 2010 someone posted on this same forum a similar coin, I'll take screen shot. His was siler and a 2007 cdn penny as well
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New Member
Canada
20 Posts |
This is the forum post picture of this other members coin from 2010... similar coin..although he had no weight or diameter either  |
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Pillar of the Community
Canada
5324 Posts |
You just need a friend who works in this industry, every company that is prospecting will have at least a hand held unit it gives instant results. If ICCS has already seen it and says the coin is good, you need the test to narrow the search
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Moderator
 United States
56855 Posts |
It kinda has that plated outside of mint look   John1  |
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New Member
Canada
20 Posts |
So I got a few measurements for those who asked earlier.. the coin is .0445 thousandths of an inch thick, and the diameter is .7340 thousandths of an inch. And of course weighs 1.80 grams as mentioned previously
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New Member
Canada
20 Posts |
I agree, need some testing for sure. I mean the regular penny is copper through and through right? So if this were tested and there's no copper, then I don't think it be plated. Could be whatever a dimes composition is made of with its regular plating of nNicole? Just a thought. (Note:This 3 coin picture above is someone else's coin that was posted a few years ago on this coin forum.)
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New Member
Canada
20 Posts |
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New Member
Canada
20 Posts |
still got it wrong-lol...nickel!
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Pillar of the Community
Canada
1018 Posts |
The penny you have 2007, is steel, coated with a thin plating of copper. This is why it's magnetic. The mint switched to zinc cores in 1997 and steel cores in 2002.
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Pillar of the Community
Canada
1984 Posts |
Your photographs show a fair degree of surface pitting. The coin also appears to be properly centred and the edges are poorly defined. To me this looks like the result of acid. If a cent on dime or other planchet I would expect to see some misalignment and signs in some places of full strike definition.  |
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Replies: 44 / Views: 3,669 |
First Page
Posted 04/09/2024 9:47 pm
