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<p>[QUOTE=&quot;Kentucky, post: 24623522, member: 33176&quot;]Since you appear to be new to CT, I&#039;ll try and summarize some things you may not have seen or don&#039;t remember (I&#039;m old, don&#039;t hit me).&nbsp; Conservation or proper cleaning can take care of some issues but not all, and must be done with knowledge and care.&nbsp; Pure solvents - water, acetone, toluene, alcohol - will not harm coins and will not take off real toning.&nbsp; Care must be exercised to not rub or scrub on the coins to prevent scratching from grit that might be present.&nbsp; The infamous white haze shows improvement in some cases with agents containing caustic (NaOH or KOH), but may not work in all cases and must be done with care.&nbsp; Copper staining or carbon spots are usually something that just should be avoided when buying coins.[/QUOTE]</p><p><br /></p>

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