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<p>[QUOTE=&quot;physics-fan3.14, post: 24868801, member: 19165&quot;]In my years as a coin collector, I have encountered many, many different ways to chemically treat coins.</p><p><br /></p><p>However, I think it is a terrible idea to share any methods that I think anyone could ever use to artificially color coins. I&#039;ve become increasingly more conservative on the topic as time goes by. </p><p><br /></p><p>You might be doing a simple school project... but if we share that information with you, numerous nefarious crooks might use that information to try and create things that they intend to sell.</p><p><br /></p><p>I don&#039;t know you at all... you very well might also be one of those crooks looking to make better AT coins.[/QUOTE]</p><p><br /></p>

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