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<p>[QUOTE=&quot;Oldhoopster, post: 3559244, member: 84179&quot;]I&#039;d like to know how they determined it was Brass.&nbsp; Coloration?&nbsp; That&#039;s subjective and can be influenced by other environmental conditions.&nbsp; XRF?&nbsp; While this is normally considered a surface measurement, the XRay beam penetrates deeper than the approx. 8 micron thick copper plating and will pick up the zinc core as part of the analysis.</p><p><br /></p><p>I don&#039;t doubt that there are brass plated cents based on the process.&nbsp; I have a few that I set aside back in the 80&#039;s that exhibit the brassy color and I&#039;m sure have zinc in the plating.&nbsp; However, how can you say for certain?&nbsp; Is this just a &quot;trust me&quot; thing from ANACS?[/QUOTE]</p><p><br /></p>

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