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<p>[QUOTE=&quot;physics-fan3.14, post: 26659092, member: 19165&quot;]No, you are not. You are not removing any crud at all. You are literally eating away the metal to reveal details based on the different density of the struck coin - exactly the same process as nic-a-date, just over the entire coin. If you look at your original coin, there is no crud there. </p><p><br /></p><p><br /></p><p><br /></p><p>There is a significant difference between removing verdigris or corrosion built up on a coin. That is actual restoration. That is not what you are doing here. I&#039;m perfectly fine with removing corrosion and stabilizing a coin (ancient or modern). But please don&#039;t try to fool yourself - that is not what you are doing here.[/QUOTE]</p><p><br /></p>

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