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<p>[QUOTE=&quot;Insider, post: 2473626, member: 24314&quot;]A metallurgical test is very useful to detect forgeries of all time periods.&nbsp; This has been done for decades, especially for ancients.&nbsp; Of course, the task becomes less perfect if original coins are used to make new planchets.&nbsp; Then things like crystallization and extraneous elements not found in the originals comes into play.&nbsp; Judging from the published article, ancient collectors have their work cut out for them as even TPGS&#039;s don&#039;t guarantee the coins.[/QUOTE]</p><p><br /></p>

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