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<p>[QUOTE=&quot;kaparthy, post: 2396892, member: 57463&quot;]On the subject of cleaning coins, I have very little experience. I have used &quot;rubbing alcohol&quot; (isopropanol) as a solvent.&nbsp; Soap and water are always an option.</p><p><br /></p><p>For cleaning ancients and other old copper, olive oil is frequently recommended.&nbsp; On that basis, I have tried other oils including WD-40. </p><p><br /></p><p>Old collections often toned &quot;naturally&quot; (ahem) because they were stored in felt-lined wooden cabinets.&nbsp; It might be interesting to experiment with natural woods, such as walnut and cherry to see what tones what with what result.[/QUOTE]</p><p><br /></p>

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