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<p>[QUOTE=&quot;kanga, post: 347910, member: 9270&quot;]Toning is a chemical process in which the metal of the coin reacts with things in the environment around it.</p><p>Iron reacts with oxygen to produce rust.</p><p>Aluminum reacts with oxygen to produce a crusty coating.</p><p>&nbsp;</p><p>In the case of silver, most often it reacts with sulfur.</p><p>Yes, it will continue to get darker unless you take steps to stop it.</p><p>Remove the sulfur from the area around the coin and toning will cease.</p><p>- Don&#039;t store the coin in wood containers.</p><p>- Don&#039;t store the coin in a paper container unless it is sulfur-free (this includes albums.)</p><p>- Don&#039;t handle the coin except by its edges, and then only if you&#039;ve thoroughly cleaned you hands.</p><p>&nbsp;</p><p>There are a number of storage containers that are considered safe, at least for the short term (5-10 years.)</p><p>THE WEBSITES BELOW ARE <u>ONLY</u> TO SHOW SOME OF THE PRODUCTS.</p><p>I HAVE <u>NO</u> CONNECTION WITH THEM, NOR HAVE I EVER ORDERED FROM THEM.</p><p>&nbsp;</p><p>2x2&#039;s - <a href="http://www.centercoin.com/coin_supplies/mylar_coin_holders_2x2s.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.centercoin.com/coin_supplies/mylar_coin_holders_2x2s.htm" rel="nofollow">http://www.centercoin.com/coin_supplies/mylar_coin_holders_2x2s.htm</a></p><p>&nbsp;</p><p>Flips - <a href="http://rg.ancients.info/guide/holders.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://rg.ancients.info/guide/holders.html" rel="nofollow">http://rg.ancients.info/guide/holders.html</a></p><p>&nbsp;</p><p>Other - <a href="http://www.air-tites.com/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.air-tites.com/" rel="nofollow">http://www.air-tites.com/</a></p><p>&nbsp;</p><p>Just make sure they are PVC-free.[/QUOTE]</p><p><br /></p>

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