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Washing A Gold Coin - Crazy Or Harmless ?

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Author Previous TopicReplies: 20 / Views: 2,409Next Topic Page 2 of 2
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 Posted 04/19/2023  10:03 am  Show Profile   Check Pacificoin's eBay Listings Bookmark this reply Add Pacificoin to your friends list
Without pictures no way to offer any
proper advice ?
Show us what you are on about!
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 Posted 04/19/2023  11:54 am  Show Profile   Bookmark this reply Add dsking to your friends list
Leave it alone!
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 Posted 04/19/2023  1:38 pm  Show Profile   Bookmark this reply Add Reno911 to your friends list
People are really awesome on here. It would help you to post a picture. It's not going to hurt or impead a return should you choose to do so itnwould only validate should youbhave to return it. The ladies and gentlemen on here are good! You have reservation and that's understandable so why not post it itnwould be in your interest.All up to as always just don't wait I'd say. Good luck on whatever decision you make.
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 Posted 04/19/2023  3:19 pm  Show Profile   Bookmark this reply Add Oldgrouchyguy to your friends list
Gold is a Noble Metal, and older Gold coins that have their "original skin", that are Unc. and Copper-alloyed, do not take kindly to any type of cleaning, at all, by Acetone and EzEst especially. Strippers will make the luster of old BU Gold coins unnaturally bright, and circulated coins will look worse. Depending on the type of stain the OP's coin has sustained, it could have and probably did attack the Copper in the coin. Removing it incorrectly could compromise the surface, and that can't be "fixed"
Edited by Oldgrouchyguy
04/19/2023 6:32 pm
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 Posted 04/19/2023  10:04 pm  Show Profile   Bookmark this reply Add hokiefan_82 to your friends list

Quote:
Gold is a Noble Metal, and older Gold coins that have their "original skin", that are Unc. and Copper-alloyed, do not take kindly to any type of cleaning, at all, by Acetone and EzEst especially.


@Oldgrouchyguy, I agree 100% about EzEst, as that's a harsh acid that will quickly strip any coin of original luster and can easily damage the coin. However, from my experience acetone should only remove any organic contaminants and not harm the original skin or luster of the coin, even for gold alloys. I've seen remarks in the past about acetone having an adverse effect on copper or alloys containing copper, but have never observed that myself.
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 Posted 04/20/2023  10:22 am  Show Profile   Bookmark this reply Add jbuck to your friends list

Quote:
I've seen remarks in the past about acetone having an adverse effect on copper or alloys containing copper, but have never observed that myself.
It requires a soak during an extended exposure to sunlight or UV. Not really something to worry about.

http://goccf.com/t/129677#1140824
http://goccf.com/t/384405#3291759
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 Posted 04/20/2023  6:35 pm  Show Profile   Bookmark this reply Add hokiefan_82 to your friends list

Quote:
It requires a soak during an extended exposure to sunlight or UV. Not really something to worry about.

Thanks, jbuck.
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 Posted 04/20/2023  7:04 pm  Show Profile   Bookmark this reply Add jecz79 to your friends list
Thank you all for the information.

I returned the coin. There is no problem in posting a picture of this problem spot. Here it is.

It looked like someone could already have tried cleaning that spot, not good. So I did not want to unwrap the coin before return.

Washing-A-Gold-Coin---Crazy-Or-Harmless-?

Light from one side, there are traces visible on that spot only.
Edited by jecz79
04/20/2023 8:03 pm
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 Posted 04/20/2023  7:52 pm  Show Profile   Bookmark this reply Add Oldgrouchyguy to your friends list
It's irreparably damaged
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 Posted 04/20/2023  8:06 pm  Show Profile   Bookmark this reply Add Reno911 to your friends list
Good decision. Sometimes it is for the best for something is bound to come your way far better. Things work out certain ways for a reason, ya know.
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 Posted 04/20/2023  8:06 pm  Show Profile   Bookmark this reply Add NumismaticsFTW to your friends list
This Coin is not an ms64 or ms65 minus the spot.

It's been heavily cleaned and circulated.
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Edited by NumismaticsFTW
04/20/2023 8:07 pm
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 Posted 04/20/2023  8:43 pm  Show Profile   Bookmark this reply Add jecz79 to your friends list
The photo is bad and has a plastic layer to make it worse.

But look at the neck surface. There is no wear there. Only some in the highest points. And bag marks.

This portion is damaged I agree. It makes me sad I, think the damage was recent. Bad attempt at cleaning.
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 Posted 04/20/2023  10:12 pm  Show Profile   Bookmark this reply Add Ballyhoo to your friends list
I highly doubt acetone would help that one. Perhaps conservation by the top two third party graders? I'm far from an expert on these matters, so I couldn't say. Only that someone may have had it done and could reply.
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 Posted 04/22/2023  11:56 pm  Show Profile   Bookmark this reply Add jbuck to your friends list

Quote:
Great decision to return it. that mark and scratches are a distraction on the coin.
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