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<p>[QUOTE=&quot;Lehigh96, post: 412380, member: 15309&quot;]My entire collection consists of rainbow toned coins and I don&#039;t own a single coin MS62 or below, so I think we have a dilemna.&nbsp; Toning is the result of oxidation (1st stage of corrosion) on a coin.&nbsp; When hydrogen sulfide gas in combination with oxygen come in contact with silver, the result is the formation of a silver sulfide layer on the coins surface.&nbsp; In the beginning stages, the film is so thin that it appears as color on the coin.&nbsp; For a more detailed explanation of thin film interfaces on coins, please visit the following website:&nbsp; </p><p><br /></p><p><a href="http://www.ivyleaguecoin.com/scienceoftoning.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.ivyleaguecoin.com/scienceoftoning.html" rel="nofollow">http://www.ivyleaguecoin.com/scienceoftoning.html</a></p><p><br /></p><p>As far as the numismatic world is concerned, toning is not considered damage to the coin (corrosion) until the coin turns black or pitting occurs.&nbsp; In fact, attractive toning is considered very beneficial and will on occasion result in a higher market grade assigned by the TPG and these coins bring huge premiums ranging from 2X-100X bid.&nbsp; Here is just a sampling of some attractively toned Morgan Dollars from the Battle Creek collection.&nbsp; All are graded either MS64* or MS65*.</p><p><br /></p><p><img src="http://i117.photobucket.com/albums/o59/ACPitBoss/Morgan%20Dollars/BatteCreekBasketballTeamSmall.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>If you would like to see any toned Morgans of a higher grade, just tell me what grade you want to see (within reason).[/QUOTE]</p><p><br /></p>

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