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<p>[QUOTE=&quot;dougsmit, post: 2348014, member: 19463&quot;]The obvious question to me is whether the rough surfaces on the coins as shown after souping is a result of the soup or just the way they were under the green.&nbsp; I would like to see a smooth coin (a copper cent or slick worn ancient) included as a control demonstrating the level of harshness of the soup. </p><p><br /></p><p>I prefer those who clean coins with the attitude that their first interest is doing no harm to the coin.&nbsp; It is easy to say that we improved a coin because it was unidentifiable before treatment but I have gone too far on occasion and wished I had not applied a certain technique to a certain coin or stopped short of the point I did. This is the difference between &#039;Magic&#039; soup and swill.[/QUOTE]</p><p><br /></p>

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