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America the Beautiful 5 oz. silver bullion coins
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<p>[QUOTE="dreamer94, post: 1039491, member: 6449"]Regardless of the math, the mint did report that the coins were warping in production. This is likely less of a problem with bronze medals because bronze is less dense than silver (and thus thicker for a given weight) and also harder so less likely to bend. I don't think it's the absolute thickness that matters so much as the ratio of the face area to the thickness.[/QUOTE]</p><p><br /></p>
[QUOTE="dreamer94, post: 1039491, member: 6449"]Regardless of the math, the mint did report that the coins were warping in production. This is likely less of a problem with bronze medals because bronze is less dense than silver (and thus thicker for a given weight) and also harder so less likely to bend. I don't think it's the absolute thickness that matters so much as the ratio of the face area to the thickness.[/QUOTE]
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