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 Replies: 12 / Views: 1,256 |
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New Member
United States
24 Posts |
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Bedrock of the Community
United States
19155 Posts |
I've noticed the same filmy crud on '68 and '69 uncirculated mint set coins. Try soaking the coin in 100% acetone for a day or so.
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New Member
 United States
24 Posts |
Would soaking it in my nail polish remover work too? I think all that stuff is is acetone.
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Moderator
 United States
56855 Posts |
No. Only 100% pure acetone. John1  |
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Bedrock of the Community
United States
94367 Posts |
 to the CCF! |
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Pillar of the Community
United States
2775 Posts |
Quote:
No. Only 100% pure acetone.  Also caution, do not soak in direct sunlight nor around UV light. Quote:
Would soaking it in my nail polish remover work too? I think all that stuff is is acetone. Generally speaking most nail polish remover with acetone have other additives, which is not beneficial to the coins natural copper (red) patina. Proceed with caution. Thanks, Doug. Quote:
I am confident in saying whatever it is came from the Denver mint 53 years ago. I am not looking for some kind of error or whatever but rather I am just very curious if any of you experts know what I'm looking at. I took photos of the entire coin as required and I used indirect light on the first 2 pictures and then increased the power and took some more. Kinda looks like that liquid terminator guy rubbed up against it. Thoughts? PS: Adding the seals on shrink wrap is not a guaranteed seal from day one nor is it after 53 years. Thank, Doug. Edited by Halo1st
03/08/2022 06:27 am
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Pillar of the Community
United States
2869 Posts |
What does the light exposure do with the acetone? Trying to learn here.
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Pillar of the Community
United States
2775 Posts |
Edited by Halo1st
03/08/2022 06:21 am
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New Member
United States
24 Posts |
Excellent. Got it. Only 100% acetone. You guys are the absolute best. It is okay for me to smoke while I do all of this right? muaaaah! kidding. love you all
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New Member
United States
24 Posts |
An update and a shout out to Halo1st/Doug: I got 3 mint sets from an estate auction. The excact same stuff is on the 1970 penny as well. No other coins effected. The mystery deepens.
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Pillar of the Community
United States
3207 Posts |
that suggests the cent's alloy reacted with the plastic more than the alloy of the other denominations did
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Bedrock of the Community
United States
62064 Posts |
Leaving them in the cello that long turned the color on the coin. I got a proof cent that the color was turned a bit more silver in color, but the coin is just a normal one:  |
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Pillar of the Community
Canada
6244 Posts |
Yes, 100% acetone, but just be sure is 100% and not what is marketed 100% acetone and have also denatonium benzoate.
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Replies: 12 / Views: 1,256 |
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Posted 03/07/2022 6:14 pm
