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<p>[QUOTE=&quot;Ce BCA, post: 9757063, member: 18716&quot;]XRF machines are not 100% accurate - they can work on some plated items but are noted as not being accurate on rolled, cased, filled and hge.&nbsp; It depends on the model but many will only determine plated for thinly electroplated items.</p><p><br /></p><p>Generally I would trust an experienced pawn broker with an acid bottle as their livelihood depends on getting this kind of thing right.</p><p><br /></p><p>Also some antique gold did not have the same formula of alloys which are generally accepted today, which can skew results.&nbsp; It&#039;s not a black and white area.[/QUOTE]</p><p><br /></p>

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