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<p>[QUOTE=&quot;Insider, post: 3056690, member: 24314&quot;]Thanks for adding to the discussion; however, this discussion is not about the correct definition of &quot;transparent.&quot; </p><p><br /></p><p>There is a difference between an oil slick and clear lacquer.&nbsp; If a piece of metal has a <b>CLEAR, uncolored, transparent coating</b> it will not cover its true color - in this case blue.&nbsp; For example, I&#039;ll bet a blue proof Indian cent will stay blue when sprayed with clear lacquer.&nbsp; If I had one I&#039;d do it and provide images.&nbsp; </p><p><br /></p><p>Nevertheless, the blue color on copper can be produced in seconds by a coin doctor or conservator (in this case not on purpose as <b><span style="color: #ff0000">I&#039;ve done it <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie10" alt=":oops:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie15" alt=":arghh:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie46" alt=":facepalm:" unselectable="on" unselectable="on" /></span></b>) or naturally over <b>several years</b>.[/QUOTE]</p><p><br /></p>

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