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<p>[QUOTE=&quot;TIF, post: 2425109, member: 56859&quot;]Interesting article!</p><p><br /></p><p>Taking such a &quot;fingerprint&quot; of a valuable ancient object might indeed prove to be helpful should it every be stolen.&nbsp; It&#039;s not useful for determining the true composition of a coin since it only reads the surface, but for purposes of having a record of a given object&#039;s signature for use in the event of future theft, it sounds reasonable at first glance.&nbsp; The importance of using the same reading device, or one with the same specs, was mentioned.&nbsp; What happens when today&#039;s handheld XRF devices are obsolete?</p><p><br /></p><p>I wonder how or if patina affects the reading (for silver and gold coins and their alloys).&nbsp; I&#039;d guess that bronze coins would be more difficult given the heavy patinas which can occur naturally or artificially.[/QUOTE]</p><p><br /></p>

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