Message:

<p>[QUOTE=&quot;GDJMSP, post: 1835345, member: 112&quot;]It&nbsp; is dependent on the environment, but simply put it&#039;s a matter of air flow. The slab, or any of the hard plastic coin holders, by the very nature of their construction, greatly slow down the amount of air that can flow across the coin. The air itself, and the contaminants it contains, is the primary culprit that causes toning. So the more you can reduce the amount of air that reaches the coin the more you can slow down toning.</p><p><br /></p><p>So, if you put your coins in the hard plastic holders (of any type including slabs), that slows down the air. Then if you store those holdered coins in a closed, inert, container that slows down the air even more. And if you put a silica gel pack in that container that helps control humidity in the air that does get into the container.And if you then store that container in a safe, that slows down the air again.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in