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<p>[QUOTE=&quot;MDCoinster, post: 2352674, member: 77376&quot;]Well, he designs satellites for NASA and knows his chemistry and biology. So I considered listening to him. Just because someone has the &quot;engineer&quot; title doesn&#039;t necessarily mean they don&#039;t know about coins. It also doesn&#039;t mean they do know either. So, I reached out to someone that I know in person who may have a clue on what would clean a coin. It was a simple question, and after doing research I see that cleaning is no good. Thanks for the feedback![/QUOTE]</p><p><br /></p>

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