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<p>[QUOTE=&quot;Ian, post: 80978, member: 283&quot;]You will find many ancient coins bearing test cuts and / or bankers marks.&nbsp; These were designed to expose the core of the coin rather than to determine % purities. </p><p><br /></p><p>Most fakes of that time wwere copper core with thin silver plating. Such test cuts / marks did the trick from an authentication perspective.[/QUOTE]</p><p><br /></p>

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