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<p>[QUOTE="imrich, post: 4166511, member: 22331"]I didn't want to correct anyone because I didn't understand the process that would facilitate that seemingly oxidation on bags of high quality/grade Mercury dimes, etc. coins, that I don't believe were ever near paper. I received them in cloth bags up to a half century ago where they were separated into $100 lots, closed in plastic food storage bags, housed in sealed steel ammunition cans. Many of the AU/BU grade condition coins were completely blackened when viewed up to a half century later.</p><p><br /></p><p>I developed a proprietary non-dip, non-abrasive process for neutralization, but the coins are needed to be separated flat in a suspended labor intensive operation.</p><p><br /></p><p>I don't believe there's a simple relatively non-destructive manner for neutralizing the "oxidated" covering. I just wanted to prove it could be done. I briefly, in the past, discussed the process in this venue. I didn't elaborate, as there are critical parameters that need to be met for successful uniform fields/devices conversion. I believe the average collector wouldn't have the patience for proper completion of surface conversion.</p><p><br /></p><p>I showed completed lustrous specimens to a family member on a soft sheet, but he couldn't leave them in place, picking them up between his fingers. I gave some larger W.L. halves as presents in air-tites, but decided process disclosure was a futile exercise.</p><p><br /></p><p>JMHO[/QUOTE]</p><p><br /></p>
[QUOTE="imrich, post: 4166511, member: 22331"]I didn't want to correct anyone because I didn't understand the process that would facilitate that seemingly oxidation on bags of high quality/grade Mercury dimes, etc. coins, that I don't believe were ever near paper. I received them in cloth bags up to a half century ago where they were separated into $100 lots, closed in plastic food storage bags, housed in sealed steel ammunition cans. Many of the AU/BU grade condition coins were completely blackened when viewed up to a half century later. I developed a proprietary non-dip, non-abrasive process for neutralization, but the coins are needed to be separated flat in a suspended labor intensive operation. I don't believe there's a simple relatively non-destructive manner for neutralizing the "oxidated" covering. I just wanted to prove it could be done. I briefly, in the past, discussed the process in this venue. I didn't elaborate, as there are critical parameters that need to be met for successful uniform fields/devices conversion. I believe the average collector wouldn't have the patience for proper completion of surface conversion. I showed completed lustrous specimens to a family member on a soft sheet, but he couldn't leave them in place, picking them up between his fingers. I gave some larger W.L. halves as presents in air-tites, but decided process disclosure was a futile exercise. JMHO[/QUOTE]
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