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 Replies: 13 / Views: 1,305 |
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Valued Member
United States
211 Posts |
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Pillar of the Community
Canada
3733 Posts |
looks like it took, a hit, as you can see where the metal was pushed down.
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Pillar of the Community
United States
3546 Posts |
Neither PCGS nor NGC show any major varieties for this coin: PMD |
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Rest in Peace
United States
17900 Posts |
 . I would suggest a pure Acetone bath, followed by a pure water spray rinse, followed by an air dry. I'm betting a lot of that black gunk will be reduced without harming the coin. Do not rub it with ANYTHING. |
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Valued Member
 United States
211 Posts |
Yeah Mox I soaked her already and I believe someone in the past did as well. Some gunk came off but it's pretty hard stuff.
Yeah there definately raised metal behind the S. Before I posted I checked Variety Vista and google and they show no variety for the '18 S. My guess was someone tooled a cheesey S onto of the mm but who knows.
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Rest in Peace
United States
17900 Posts |
A long soak in olive oil would probably separate the rest from the surface.
When I say long, I mean 6 months to a year.
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Valued Member
United States
211 Posts |
Oh wow, seriously? I would have no problem going that route on a coin that brings good $$$. Thanks for the tip Mox! Good to know for sure!
Just curious, How long do you let it soak in the acetone,?
Edited by Jayyk31
10/06/2019 9:03 pm
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Bedrock of the Community
United States
20753 Posts |
Do not use Olive Oil on coins. Olive Oil is different with different companies. Some contain larger amounts of acids. So not use that stuff on coins. As to Acetone. Anything longer than several minutes is a waste of time. It works fast. As to your RPM on the S Mint Mark. Sure does look like it. People at the Mint back then probably had a few Martini's for lunch and punched that a few times. No big thing. It is rather common but still worth a little more.
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Pillar of the Community
United States
7015 Posts |
Olive Oil ? what's the PH level ? Pure ? vs 100% pure ? Looks like I got a weekend project with copper and silver junk coins ahead for me..Respectfully to Moxking and just carl...Where's Bad Thad ? Would love to hear his opinion on this
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Bedrock of the Community
United States
10034 Posts |
There is no reported RPM for an 18-S. Check out varietyvista.com. To me the MM looks like either Machine Doubling (loose dies in the press move upon strike and "smear" a detail) or some sort of a hit that moved the metal - flat and shelflike "doubling." As to trying to et rid of the black stuff - use BadThad's (CCF member and professional chemist) solvent list: http://goccf.com/t/57008#447106 |
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Rest in Peace
United States
18456 Posts |
Surprising no one has mentioned that this coin has already been harshly cleaned . I don't think any more of that black will come off unless you use a wire brush or grinding wheel on it . NO just kidding .  |
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Bedrock of the Community
United States
94367 Posts |
I'm not optimistic about this cleaning up either, but let's see.
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Valued Member
United States
211 Posts |
I'll check out that list Earle42, thanks for that! I'm gonna give it another go on cleaning it but it's obviously seen better days. If I could get more of the gunk off of the Obv Motto so I could read the whole thing I'd be happy. She's a keeper tho!
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Bedrock of the Community
United States
10034 Posts |
a keeper for sure! Let us see how it comes out. |
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Replies: 13 / Views: 1,305 |
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Posted 10/06/2019 1:24 pm
