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How to remove black tone form a coin.
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<p>[QUOTE="jloring, post: 1196676, member: 15518"]One of the problems with this type of forum is that you'll get bad advice along with the good. I'm not sure if Cal was kidding (hope he was) or serious; either way, it's best to read all of the replies to your question, and understand the consequences of using certain methods of "cleaning". Take a common coin out of your pocket... run a pencil eraser over it a few times, then look at it under a 10X loupe. All those fine lines you see are permanent damage. This was one of the prime methods we used back in the 1950's, along with baking soda and an old tooth brush. Then a quick coat of liquid mercury (we did this mostly at lunch time in the cafeteria... sandwich in one hand and rubbing the mercury into the coin with the other) and "bingo"... instant "proof". Yeah... I miss those days...[/QUOTE]</p><p><br /></p>
[QUOTE="jloring, post: 1196676, member: 15518"]One of the problems with this type of forum is that you'll get bad advice along with the good. I'm not sure if Cal was kidding (hope he was) or serious; either way, it's best to read all of the replies to your question, and understand the consequences of using certain methods of "cleaning". Take a common coin out of your pocket... run a pencil eraser over it a few times, then look at it under a 10X loupe. All those fine lines you see are permanent damage. This was one of the prime methods we used back in the 1950's, along with baking soda and an old tooth brush. Then a quick coat of liquid mercury (we did this mostly at lunch time in the cafeteria... sandwich in one hand and rubbing the mercury into the coin with the other) and "bingo"... instant "proof". Yeah... I miss those days...[/QUOTE]
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