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<p>[QUOTE="robinjojo, post: 8162497, member: 110226"]Comparing the before and after photos, I wonder if some sort of chemical was used to remove some of the deposits, followed by tooling and smoothing. The color of the after coin looks porous and dark, but that might be due to the lighting. Chemicals can leave a coin dark and rough, almost as if it is from a salvage.[/QUOTE]</p><p><br /></p>
[QUOTE="robinjojo, post: 8162497, member: 110226"]Comparing the before and after photos, I wonder if some sort of chemical was used to remove some of the deposits, followed by tooling and smoothing. The color of the after coin looks porous and dark, but that might be due to the lighting. Chemicals can leave a coin dark and rough, almost as if it is from a salvage.[/QUOTE]
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