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<p>[QUOTE=&quot;physics-fan3.14, post: 2752012, member: 19165&quot;]ANACS UDMs are hard to find, because they were generally very high quality. They are either held in tight hands, or have since been crossed to PCGS/NGC. As mentioned, ANACS had 3 levels: </p><p><br /></p><p>ANACS PL varies quite a bit. I&#039;ve bought a few of them - some of them crossed to NGC as PL, some of them were semi-prooflike at best. The significant advantage they have over PCGS is that, like NGC, they were willing to designate any series as PL if it was mirrored enough. </p><p><br /></p><p>ANACS DMPL is also variable - some are DPL, some are PL. They&#039;re noticeably deeper than the PL, but its a toss-up whether it will cross or not. </p><p><br /></p><p>ANACS UDM invariably has very deep mirrors. The ones I&#039;ve been fortunate enough to see had very deep reflectivity. I&#039;ve never questioned if they would cross at DPL.[/QUOTE]</p><p><br /></p>

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