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<p>[QUOTE=&quot;JohnGalt, post: 488495, member: 13370&quot;]<b>Oil in PCGS slabs?</b></p><p><br /></p><p><br /></p><p>&nbsp;</p><p>Pardon what may be an obvious question. Can you elaborate on the &#039;oil in PCGS slabs&#039; reference. I have not heard of this before. Do they have some lubricant/preservative in their slabs? Any idea what they use?</p><p>&nbsp;</p><p>There is no such thing as a stupid question: just good questions asked by stupid people.[/QUOTE]</p><p><br /></p>

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