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<p>[QUOTE=&quot;JCro57, post: 3493731, member: 92083&quot;]A lamination (or a de-lamination) is a Mint error so long as (1) nothing was done intentionally to cause a lamination, like use a tool to force off metal pieces that weren&#039;t already starting to separate/detach (2) it wasn&#039;t caused by environmental factors like corrosion from the elements. It has to be from a flaw that was unassisted.</p><p><br /></p><p>Defefective planchets are also Mint errors so long as they also didn&#039;t receive any help.</p><p><br /></p><p>That said, not all naturally occurring damage is a desirable error. Zinc rot on copper-plated cents is not desirable and in fact is the opositte, and is usually caused by trauma after it leaves the Mint, but striking errors can often scrape off copper exposing the zinc to corrosion. </p><p><br /></p><p>~Joe C.[/QUOTE]</p><p><br /></p>

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