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<p>[QUOTE=&quot;Bone Head, post: 370898, member: 14057&quot;]Cleaning tips: </p><p>Whatever methods you want to use to clean coins you should test first on low value coins.</p><p>Chemical reactions w/ silver are complicated and some treatments require neutralization to stop the chemical reactions. Toning hides hairlines and other undesirable blemishes. Removing it may yield some very unpleasant results. If you must clean, there are good books on the market. If you acquire quality coins, they will not need to be cleaned. I think that this is the proper approach.Read the book. An excellent book (I think) is &quot;COIN CHEMISTRY&quot; by Weimar White. It has articles from Gobrecht Journals, The Numismatist, COINage, and Coin World.Topics include toning, preservation, storage and cleaning and more. If you are of a more technical mindset, try &quot;CLEANING AND PRESERVATION OF COINS AND MEDALS&quot; available from Sanford J Durst,numismatic publications.[/QUOTE]</p><p><br /></p>

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