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<p>[QUOTE=&quot;Insider, post: 2898385, member: 24314&quot;]serafino, asked:&nbsp; &quot;...when the graders get in a rare 200 year old or older foreign coin they are not familiar with, what are the steps they use to authenticate it.&quot;</p><p><br /></p><p>1. The graders have consultants who know more than many of them about specific coins.</p><p><br /></p><p>2. The graders look for similar coins in museums or at shows for comparisons.</p><p><br /></p><p>3. The graders have diagnostic files.</p><p><br /></p><p>4. Finally, something relatively new, there are very good images that can be magnified on the internet - something not around in the 1980&#039;s.[/QUOTE]</p><p><br /></p>

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