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<p>[QUOTE=&quot;John Burgess, post: 4770175, member: 105098&quot;]I dunno guys. There&#039;s &quot;cleaning&quot; using chemicals and abrasives or acids that peel of layers of a coins surface then....</p><p>There&#039;s &quot;cleaning&quot;&nbsp; where it&#039;s a quick dip to conserve the coin and only detracting surface contaminants are removed.</p><p><br /></p><p>I mean one is clearly wrong, while the other is totally market acceptable and even done by grading companies for a fee without dinging the value of the coin, if the &quot;cleaning&quot; is possible to not cause more harm than good.</p><p><br /></p><p>Every coin dealer is gonna tell you don&#039;t clean coins and every coin dealer when they buy your coins will select certain candidates to dip that would benefit and then sell them without a word said because it&#039;s acceptable. While if it wouldn&#039;t help, leave it as is.</p><p><br /></p><p>That said no, &quot;cleaning&quot; shouldn&#039;t be done by a novice on coins of value, get all your practice and comfortability done on junk coins of little to no value of same material composition before moving on to valuable coins, learn what it can and can&#039;t do and how long you can do it before damaging the coin, because then you aren&#039;t cleaning, you are conserving or restoring just like the dealers and the grading companies are. A lot of coins should be left alone but there are some that benefit from it.</p><p><br /></p><p>This isn&#039;t one of those cleaning jobs though, this would be a &quot;done wrong&quot; example.</p><p>And again I&#039;d think it was an old cleaning and not something recent at all.[/QUOTE]</p><p><br /></p>

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