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<p>[QUOTE=&quot;brg5658, post: 1516495, member: 29751&quot;]The PCGS &quot;Secure Plus&quot; service does exactly this.&nbsp; Coins in holders with the little gold shield are &quot;mapped&quot;, and new submissions are (to my understanding) compared to the database of mapped coins.&nbsp; The goal of this was to avoid resubmissions and double counting of coins in the populations -- but also to make it possible to detect coins that were stolen or doctored, etc. when they make it back to the world of plastic.</p><p><br /></p><p>See this video: <a href="http://www.pcgs.com/Articles/Detail/6518" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.pcgs.com/Articles/Detail/6518" rel="nofollow">http://www.pcgs.com/Articles/Detail/6518</a>[/QUOTE]</p><p><br /></p>

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