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Does anyone know if this is a mint error by chance?
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<p>[QUOTE="MatrixMP-9, post: 3901378, member: 93422"]Acid. Copper and zinc are good heat conductors and the area around it would have been damaged even with a pin point flame. Its got a nice perimeter as if acid was dropped on those 2 spots and then neutralized or something before going all the way through. Cool PMD.[/QUOTE]</p><p><br /></p>
[QUOTE="MatrixMP-9, post: 3901378, member: 93422"]Acid. Copper and zinc are good heat conductors and the area around it would have been damaged even with a pin point flame. Its got a nice perimeter as if acid was dropped on those 2 spots and then neutralized or something before going all the way through. Cool PMD.[/QUOTE]
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Does anyone know if this is a mint error by chance?
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