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2016 Zincoln And It's Not Road Rash
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<p>[QUOTE="Scuba4fun777, post: 4721760, member: 75199"]No doubt PMD. </p><p>I’m guessing this coin was heated, causing the copper to start to bubble and delaminate from the zinc, then cleaned to remove any toning or discoloring - or perhaps heated in a vacuum or inert gas, preventing any oxidation from occurring. </p><p>It kind of has that “aluminum foil hit with a blowtorch” look. </p><p>Another possibility is a soak in an acid that would attack the zinc more aggressively than the copper. However, I believe the 1st scenario is more likely.[/QUOTE]</p><p><br /></p>
[QUOTE="Scuba4fun777, post: 4721760, member: 75199"]No doubt PMD. I’m guessing this coin was heated, causing the copper to start to bubble and delaminate from the zinc, then cleaned to remove any toning or discoloring - or perhaps heated in a vacuum or inert gas, preventing any oxidation from occurring. It kind of has that “aluminum foil hit with a blowtorch” look. Another possibility is a soak in an acid that would attack the zinc more aggressively than the copper. However, I believe the 1st scenario is more likely.[/QUOTE]
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