Message:

<p>[QUOTE=&quot;Paul M., post: 2116938, member: 73165&quot;]I bet the truth lies in the space between where all the arguing is happening.</p><p><br /></p><p>I believe there are those out there who can apply toning to coins and get the result past the TPGs with a reasonable success rate.&nbsp; I believe coins can be toned inside slabs (using hydrogen sulfide, for instance), because slabs aren&#039;t air tight.&nbsp; What I have more trouble believing is that specific toning patterns can be created at will or nearly so. </p><p><br /></p><p>Natural toning happens when silver or copper meet sulfur.&nbsp; That&#039;s why I have no problem believing that people can artificially create some of the same results, because all you have to do is get some hydrogen sulfide gas in around the coin.&nbsp; By controlling the concentration of gas and the amount of time exposed, you can get different amounts of toning.&nbsp; And, maybe there&#039;s a masking method that can give some control over the patterning, but I&#039;m less sure about that.&nbsp; </p><p><br /></p><p>Because the mechanism is the same as that for natural toning (depositing sulfide on to silver), I have no doubt that this type of toning could be done undetectably.[/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