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<p>[QUOTE=&quot;Conder101, post: 40594, member: 66&quot;]If the &quot;harder&quot; piece is hard enough not to be flattened by the strike it would also most likely be hard enough to cause damage to the surfaces of the die as well.&nbsp; This would leave evidence on every coinstruck after that time.&nbsp; As an example, look at the spiked chin half cents.&nbsp; They were created by the dies coming together on a planchet that had a small bolt laying on it.&nbsp; The head of the bolt created the spike at the chin and a small one by the mouth.&nbsp; It also cut curved lines into the surface of the obverse die from the treads of the bolt.&nbsp; The spike is clear on all subsequent coins but the thread marks are usuaily only seen on better grade coins.[/QUOTE]</p><p><br /></p>

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