Message:

<p>[QUOTE=&quot;desertgem, post: 2482545, member: 15199&quot;]Since the coin chemicals involved are almost identical , verdigris and PVC damage initiate from different chemical reactions similar to NT vs. AT toning. Verdigris and natural toning are processes from chemical reactions with the environmental conditions usually over a long or very long period of time. PVC damage ( &quot;slime&quot;) and AT are initiated by exposing the coin metal to chemical or other artificial treatment to get coin toning over a short or very short period of time.[/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