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<p>[QUOTE=&quot;cpm9ball, post: 933376, member: 24633&quot;]The important issue is that you would want them to address the corrosion without harming the toning. If you do consider submitting it for conservation, you must be very specific about the work you want performed. It would also be a good idea to make a notation on the submission form (in bold print!) that they call before performing any service that might change the overall appearance.</p><p>&nbsp;</p><p>It would only go into a problem slab if they found another problem hidden under the toning, i.e., hairlines from a previous cleaning, but if that happened, NGC would be liable for compensation to you under their guarantee since they had already authenticated it.</p><p>&nbsp;</p><p>Chris[/QUOTE]</p><p><br /></p>

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