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 Replies: 37 / Views: 5,753 |
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Pillar of the Community
 United States
2404 Posts |
I did use fingernail at area above OF. That part did peel away. It looked like the copper clad was folded up and over. On underside of flakes was copper Couldn't get a clear picture to show. I did scratched the whole area pretty aggressive and nothing came off. Took pictures to compare. Couldn't get same lighting so new pictures are not as clear. Weight was 2.50-8 times out of ten 2 times came up at 2.49. Red arrows are original pictures. Thanks everyone for your time and input.      |
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Pillar of the Community
United States
2742 Posts |
Hey Rob, got to this thread late but I posted about a 2006 D 1c a short while back with a similar anomaly and Mike Diamond did respond. I don't think my photos helped Mike make a proper determination as I feel these are mint errors but that's just my opinion. http://goccf.com/t/390704#3343324"Pride is yoked with callous behavior, as humility is with compassion." St. Gregory Palamas Top Finds - 1969-S 1c FS-101 http://goccf.com/t/477681 1976 D WQ FS-101 http://goccf.com/t/382777 - 1968 D 1c FS-801 http://goccf.com/t/422254Cool clashed dies - 1972 D 1c http://goccf.com/t/429855&SearchTerms=CCLStruck-In Rim Burr - 1969 S 1c http://goccf.com/t/425587&SearchTerms=burrFloating (Type II) Counterclash - 1978 D 1c http://goccf.com/t/434991&SearchTerms=1978 |
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Pillar of the Community
United States
2404 Posts |
All ours look similar happening. It's weird how it looks like but it can't be laminate peeling. Looks like where it is missing copper clad some of the edges are curled up showing the zinc (color ?) I soaked it in acetone in the beginning and it didn't affect it. The little peace's I scratch off above OF like I said was copper on one side. It's weird that it's on top of coin also like it's paint but I let it soak again and fingernail didn't touch it still. It'd be cool maybe send the coin to Mike and let him figure it out. Then maybe yes/no   |
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Pillar of the Community
Canada
6244 Posts |
@Rob0411. If you do not care about the value, or considerate that is not a keeper, you can do a small semi destructive test. You need a dilute HCl hydrochloric acid and with a tooth wood pick put a small drop on the white trace. Do not worry about the copper because do not react with this acid. If the trace have Cu under will show up. If not are mean that trace is direct proportional with the core of the coin. Zinc in presence of this acid will have a gas hydrogen evaporate and at the surface will create effervescences. Here the reaction: Zn + HCl = 2ZnCl2 + H2 explanation from the balancing acids, metals reactions: quote: Quote:
Balancing Strategies: When we add zinc to hydrochloric acid we end up with zinc chloride, a salt, and hydrogen gas. If not you need a good XRF 15Watt, 0.3mA with multilayer software and capability to adjust the penetration ray. Good luck and let us to know the result. Me I will go for destructive test which will let a small hole of.001mm Edited by silviosi
03/28/2021 7:49 pm
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Valued Member
United States
354 Posts |
Could this have been done by chemicals?
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Pillar of the Community
Canada
6244 Posts |
Theoretical yes. It is possible to have liquid metal solutions, but to apply on different surfaces you need a well equip lab. Also you can clean for example a zinc penny of the Cu with Nitric acid HNO3 with out to damage the zinc core. Some of those sometimes I see on ebay with crazy prices by those "smarts counterfeiters". |
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Pillar of the Community
United States
2404 Posts |
Silviosi Sounds like you really know your stuff about metals. Thank you for that idea but besides paint remover and acetone I have a couple bottles of pretty nice Bourbon. That word acid stuff scares me. Lol I think I'd hurt myself.
I think sending the coin to (someone) is the best I can do.
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Pillar of the Community
Canada
6244 Posts |
I prefers Vecchia Romana but a good Bourbon with a good cheese and nice entourage is a pleasure of the life.
If you are scare do not try. It is the safer way. Me sometimes I put the finger inside the solute acid and test (gustative test) to see if I have the wanted concentration. To commode guy to put the densimeter.
also pay attention of the vapors (gases) from acetone and paint remover (mineral alcohol) those are very, very cancerogenic.
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Pillar of the Community
United States
2738 Posts |
This is pre-strike planchet damage. Many similar cents have emerged over the past 10 - 15 years. Something is scratching away the plating.
Error coin writer and researcher.
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Pillar of the Community
United States
4406 Posts |
Edited by Tanman2001
03/28/2021 10:10 pm
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Pillar of the Community
United States
2742 Posts |
Good links Tanman2001, thanks.
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Pillar of the Community
United States
2404 Posts |
Thanks everyone for your input. I appreciate them all.
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Valued Member
United States
271 Posts |
Interesting questions. It's also noticeable that the obverse has some damage running linearly NW to SE right through Lincoln's neck. The ear and chin areas are a little funny in the pictures, too. Significant?
Stay well,
Diy89Nurm7
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Pillar of the Community
2145 Posts |
Quote:
This is pre-strike planchet damage. Many similar cents have emerged over the past 10 - 15 years. Something is scratching away the plating. Interesting....... great info! |
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Valued Member
United States
426 Posts |
I've found a couple of these searching rolls. This is a defective planchet error.
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Replies: 37 / Views: 5,753 |
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Posted 03/28/2021 1:02 pm
