How to remove pawn shop acid damage

I have a 75% nickel 25% copper coin that a pawn shop tried testing with acid that left a nice dark green blemish on. How to remove?
Thanks!
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I have a 75% nickel 25% copper coin that a pawn shop tried testing with acid that left a nice dark green blemish on. How to remove?
Thanks!
Comments
Ouch - I would have passed on the coin purchase.
I paid the demonitized and adjusted 25 pence which was 35 cents or so.
A photo to see what your dealing with would help.
You can remove the "green blemish". What you can't do is remove the acid damage to the surface. The coin is irrecoverable in that sense. Dip should remove it.
Acid damage is basically permanent the green... is interesting...
Is this a temporary album filler coin? If it is, leave it be until you find a better coin. IMO
The acid damage will be permanent. Don't waste time or money trying to make it look better. I hope it was a cheap coin.
With acid damage - which is permanent - you now have an album coin or place holder until you get a better one. Dip off the green .... Cheers, RickO
Acid damage etched into the surfaces will not just go away. It is there.
In honor of the memory of Cpl. Michael E. Thompson
Was the dealer trying to restore the date on a dateless buffalo nickel?
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
I had a clown down the street from me that would file a big notch in your ring or pocket watch and pour acid on it. As if he didn't know it was gold. People would then come to me, and I'd say, "Why didn't you sell it to blah, blah?" " How did you know I went there ?"
I felt that behavior was downright criminal as it cost people a lot of money and ruined a lot of nice pieces.
There's nothing criminal about it if he asks. A lot of people still acid test gold. But the people I know always ask before they scratch it.
This guy was surreptitious.....His attitude was if you're not going to sell it to me, then it will cost you. This was not done in an effort to 'test' a piece, a piece that required no testing to begin with, but an effort to ruin a piece.
I'm still waiting for a response. I can't think of any other reason to acid test a copper nickel coin. Normally nitric acid is only used to test precious metals aka "the acid test".
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
If you read the OP's 2nd post, it was a 25 pence coin not a buffalo nickel. He was probably trying to make sure it wasn't silver.
Pictures please. Some "damage" can be conserved to a greater or lesser degree. If metal is lost, it is a goner IMO however.
Well, just Love coins, period.
Tragic and unnecessary.
A quick Google search would have confirmed the composition of the coin.