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 Replies: 10 / Views: 869 |
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Bedrock of the Community
United States
19155 Posts |
Found this in a large container of bulk wheat cents. Nothing terribly special, but does show an interesting erosion pattern. Used my phone for the pics--too lazy to set up my better equipment. The S mint mark is there, but very worn. Yes, I know all about Pareidolia.    Edited by ijn1944
10/08/2022 09:22 am
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Pillar of the Community
Canada
9162 Posts |
I'd say it has a lamination problem. cool
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Bedrock of the Community
United States
94367 Posts |
Or an acidic substance sat on the edge for some time?
Edited by Coinfrog
10/08/2022 1:16 pm
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Pillar of the Community
Canada
6244 Posts |
1921 it is bronze. I agree with COINFROG about acidic contact, the flow of the texture give us indications of. In the same time I will say that this interaction with acidic contact is combine with an ex-foliation of the material. Due to the age I consider normal for an planchet which was not perfect osmogene.
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Moderator
 United States
96071 Posts |
I'll go with an acid wash which etched the surface.
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Moderator
United States
34410 Posts |
Seems like quite a bit of metal has eroded away—what's the weight? I agree that the pattern of erosion is quite interesting.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Valued Member
United States
53 Posts |
Sorry, but it's not an error of any kind. Whatever happened to it occurred after it left the mint. Too many environmental factors that could have caused the damage to pinpoint the exact cause
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Bedrock of the Community
United States
62064 Posts |
Noting the circulation wear and the sharpness of the affected areas, it looks like it was altered post strike.
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Bedrock of the Community
 United States
19155 Posts |
Weight is 2.85. Yes, yes--post-strike damage, certainly not an error.
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Pillar of the Community
Canada
6244 Posts |
Not a mint error sure. But if the metal will not separate structural you will never have this effect near the rims on the Observe. Some acidic environment acted as an leant for this separation. What stay in the line with my opinion is clear that the only the missing parts has those strait lines where the acidic enter between the bronze crystals. Do not forgot that the bronze is a metal in the cubic crystalline metals family, this mean that any acid will follows the molecular lines.
Second: The metal fatigue act also as a leant of separation.
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Pillar of the Community
United States
7174 Posts |
 with the frog. Acid ate away the outer edge. |
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Replies: 10 / Views: 869 |
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Posted 10/08/2022 09:27 am
