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 Replies: 8 / Views: 959 |
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Pillar of the Community
United States
2177 Posts |
Image:  IMG_0144greaAbeZM.jpg10.69 KB Image: trimAbe.jpg79.81 KB Here's a greasy Lincoln with several errors. A zero on the date is missshaped but I couldn't get a good pic of that error. In the zoomed pic the outer edge has what looks like partial marks off the letters. Any idea on how the pictured error could have happened?
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Rest in Peace
United States
2684 Posts |
thingee, what makes you think it's grease? Reason I'm asking is that I have a Morgan with nearly identical black markings/discoloration (for lack of a better term) which was bodybagged by PCGS as "environmental damage". I've since used the coin as an experimental piece, have dipped it in acetone, rubbing alcohol, and of course, water with absolutely no change in the black stuff. If I had the equipment, I'd scrape some of that stuff off and run it through a mass spectrometer just to satisfy my curiosity. Whatever it is, is on to stay.
...Which doesn't answer any of your questions about the errors on the Lincoln, about which I know little.
Fred
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Pillar of the Community
United States
2365 Posts |
I'd say the copper coating is wearing off.
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Pillar of the Community
 United States
2177 Posts |
I'm assuming it's grease because that's what it looks like. I'll try to smudge it a litle and see what happens.
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Pillar of the Community
United States
1626 Posts |
It almost looks like the copper is flaking off?
Keep us posted on what you find out. Thanks
Tim
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Pillar of the Community
United States
2177 Posts |
I tried smudging it a little and this black stuff flaked off very easily. I don't want to scrape the rest off because of the errors on it and I don't want to damage the coin. Should I try acetone? I've never used this stuff. Please advise.  |
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Rest in Peace
United States
2684 Posts |
Grease doesn't solidify nor flake. I'm wondering if this could be residual paint, lacquer, nail polish (which is basically lacquer) or some other coating or decoration someone splashed on for whatever reason (some people/kids like to "mark" coins to see if they ever come back to them through circulation). If it's such a decoration, the only thing I know which will remove a dried coating is furniture/paint stripper which might dissolve the metal before it softens the coating  . Actually, I hadn't thought of this possibility that it might be paint or lacquer until this thread. Might explain why I wasn't able to remove it from my 79CC Morgan and why said Morgan now has been relegated to expensive junque. Fred |
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New Member
United States
37 Posts |
The most logical explanation for what you are seeing is the remenents of a counting machine wheel that is falling apart. Mixed in is also a bit of lubricant to make it adhesive to the coin. This would also account for the odd marks on the rim. Normally, when a coin passes through a coin counting machine, it leaves no marks, however, worn parts can cause a myriad of scrapes, gunk and deformities to any coin making it useless to the coin collector. There is an expression; "Death by Coin Star" to a coin so mutilated by a counting machine.
Hope this helps.
WAVYSTEPS aka BJ Neff
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Pillar of the Community
United States
2177 Posts |
quote:
Originally posted by wavysteps
The most logical explanation for what you are seeing is the remenents of a counting machine wheel that is falling apart. Mixed in is also a bit of lubricant to make it adhesive to the coin. This would also account for the odd marks on the rim. Normally, when a coin passes through a coin counting machine, it leaves no marks, however, worn parts can cause a myriad of scrapes, gunk and deformities to any coin making it useless to the coin collector. There is an expression; "Death by Coin Star" to a coin so mutilated by a counting machine.
Hope this helps.
Ha! I've never heard the expression "Death By Coinstar" before.
It makes sense though. Thanks for your thoughts.
WAVYSTEPS aka BJ Neff
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Posted 10/04/2006 10:43 pm
