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 Replies: 13 / Views: 589 |
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New Member
United States
4 Posts |
*** Edited by Staff to crop and/or rotate and/or resize images. In the future, please crop, resize, and correctly orient images before uploading.  ***Anyone seen a 2023 penny with full on honeycomb effect on it. 
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Moderator
 United States
188130 Posts |
 to the Community! Your reply was split into its own topic and moved to the appropriate forum for the proper attention. |
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Bedrock of the Community
United States
73974 Posts |
To CCF! Something was on the coin and stained it. Not an error. PMD. Errers and Varietys.
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Pillar of the Community
 United States
6495 Posts |
Looks like it might have been stuck to a honeycomb floor mat and stained by contact.
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New Member
 United States
4 Posts |
I have tried scrubbing it off at it will not come off though.
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Moderator
United States
188130 Posts |
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Bedrock of the Community
United States
19146 Posts |
Thinking contact staining--post-strike damage. Some stains can be quite stubborn. A long soak in 100% acetone might have worked, but 'scrubbing' the coin to remove the stain likely mitigated whatever acetone might have been able to accomplish.
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New Member
United States
4 Posts |
Im new to coin collecting. What do you think these coins would grade as?
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New Member
United States
4 Posts |
*** Edited by Staff to crop and/or rotate and/or resize images. In the future, please crop, resize, and correctly orient images before uploading. ***
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Moderator
United States
188130 Posts |
Looks like a nice group! But it is best to put each coin into its own topic with a cropped photo showing each side of the coin.
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Bedrock of the Community
Canada
21601 Posts |
In order to grade, a larger clear photo of each side is required.
You do not grade just one side of a coin.
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Moderator
United States
95517 Posts |
to CCF. I agree with jbuck and JimmyD |
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Bedrock of the Community
United States
10511 Posts |
Quote:
I have tried scrubbing it off at it will not come off though. Right - that's why they call it a stain - it is adhered to the coins surface and would need to be dissolved by like acetone as mentioned previously. |
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Pillar of the Community
United States
572 Posts |
Quote:
Quote:
I have tried scrubbing it off at it will not come off though.
Right - that's why they call it a stain - it is adhered to the coins surface and would need to be dissolved by like acetone as mentioned previously. Not a "stain" and no amount of acetone will take it off. When copper comes into contact with other elements it reacts and that reaction changes the copper at the molecular level. What you're seeing as brown is actually copper nitrate/nitrite/sulfate/sulfite/sulfide or some other substance (there's a thousand possibilities) whose natural color is brown, rather than that rich red color of pure copper we all love. Since it's not actually copper any longer that you're seeing (at least a few molecules deep on the plating), and there's nothing that can be done to to reverse the chemical change that's taken place, the best thing to do is enjoy it as is. Or spend it. |
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Replies: 13 / Views: 589 |
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Posted 01/13/2026 3:53 pm
