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<p>[QUOTE=&quot;purple88, post: 1821256, member: 56032&quot;]Amanda I&#039;m not saying you are wrong or right.&nbsp; I want everyone following this thread to read what the good folks at NCS have to say about toning.&nbsp; Correct me if I&#039;m wrong but NCS are the supposed experts who we should all listen too for instruction, info and guidance.&nbsp; The following quote is taken from the page on their website that is promoting their fee-based &quot;conservation&quot; service.&nbsp; </p><p><br /></p><p>&quot;Light surface corrosion, or toning as it’s described in the numismatic community, can be very desirable. Collectors often prize it as one indicator of a coin’s originality, or closeness to its original state. Toning causes copper coins to turn brown, and silver and nickel coins to develop hues of blue, red, green, purple, and other colors. Often, these coins need little or no conservation; however, advanced stages of corrosion can damage a coin’s surfaces. If the toning process goes too far, the coins turn black and the actual surface of the coin may be ruined forever.&quot;</p><p><br /></p><p>Here&#039;s the link to the web page for anyone who&#039;d like to read NCS&#039;s sales pitch.</p><p><a href="http://www.ncscoin.com/conservation/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.ncscoin.com/conservation/" rel="nofollow">http://www.ncscoin.com/conservation/</a>[/QUOTE]</p><p><br /></p>

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