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<p>[QUOTE=&quot;iPen, post: 2357309, member: 69760&quot;]I understand that 70 is already perfect, with ideal brilliant luster, but what about proof coins? NGC says that it must have cameo on at least one side, as shown below per the link : <a href="https://www.ngccoin.com/news/viewarticle.aspx?NewsletterNewsArticleID=340" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.ngccoin.com/news/viewarticle.aspx?NewsletterNewsArticleID=340" rel="nofollow">https://www.ngccoin.com/news/viewarticle.aspx?NewsletterNewsArticleID=340</a></p><p><br /></p><ul> <li>They display cameo or ultra cameo contrast on the obverse only.</li> <li>Coins that do not qualify for cameo but which display cameo contrast on both the obverse and reverse that falls just short of NGC&#039;s minimum standard for cameo may receive a star. (Coins that display only a subtle contrast will not receive a star or a cameo designation.)</li> <li>They qualify for the cameo designation and, in addition, have an ultra cameo obverse.</li> <li>They qualify for the ultra cameo designation and, in addition, exhibit exceptionally intense contrast between devices and fields on both the obverse and reverse that exceeds by a generous margin that of the normal ultra cameo standard.</li> </ul><p><br /></p><p>So, if a proof coin has ultra cameo on the obverse only and is designated as a PF-70, then wouldn&#039;t an ultra cameo on both sides be &quot;better&quot;, since that&#039;s what&#039;s supposed to show on many proof coins? </p><p><br /></p><p><br /></p><p>Also, NGC defines PF-70 designations as &quot;a Mint State or Proof 70 coin as having no post-production imperfections at 5x magnification.&quot; What if there are flaws at, say, 10x magnification? If a different coin of the same type has no flaw at 10x magnification, then shouldn&#039;t that be shown as being better (although NGC probably won&#039;t check at that magnification so they&#039;re all lumped together in the same grade)? But, I&#039;d think it would make sense to afford star designations for flaws that don&#039;t exist with stronger magnifications.[/QUOTE]</p><p><br /></p>

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