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<p>[QUOTE=&quot;GDJMSP, post: 1725612, member: 112&quot;]The only difference there is between natural toning and artificial toning is intent.</p><p><br /></p><p>Circulated coins, while they will tone to a limited degree, will not tone anywhere near as much or as quickly as uncirculated coins. And the more circulated they are, meaning the lower the grade, the less they will tone. There&#039;s a couple of reasons for that. 1 - circulated coins are already toned, and existing toning helps prevent additional toning.. But they are typically toned grey, which is far and away the most common color of toning for silver. 2 - luster plays a large part in the toning process. So the less luster a coin has the slower and less colorful the toning will be. And by definition the lower the grade the less the amount of luster a coin has.</p><p><br /></p><p>While the manufacturing methods of paper have changed somewhat over the years most paper is still made with sulphur, and sulphur is one of the components in paper that helps cause toning. So it doesn&#039;t really matter if you get old or new coin envelopes, the result will be basically the same.</p><p><br /></p><p>But you do have to realize that the storage medium, whether it be paper envelopes, coin albums, 2x2s, coin flips, or even modern hard plastic coin holders, is a small part of the toning process. There are literally a thousand other variables that all play a part in the toning of the coins. And quite often one, several, or even many, of those other variables will have a greater impact on the resulting toning of coins.[/QUOTE]</p><p><br /></p>

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