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<p>[QUOTE=&quot;Oldhoopster, post: 2647980, member: 84179&quot;]A lamination is caused trapped gas or other contamination in the metal ingot used to roll into sheets and punch planchets.&nbsp; There is a gap/void since the metal is never bonded in this area.&nbsp; During the rolling process, these voids tend to elongate and become thinner.&nbsp; The &quot;crack&quot; you see going to the rim is just part of the unbonded, laminated area.&nbsp; It looks like a crack but, technically, is not the same.&nbsp; </p><p><br /></p><p>Also, a cud is caused by the die breaking, leaving an area where metal flows and fills during the striking process.[/QUOTE]</p><p><br /></p>

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