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<p>[QUOTE="Bob Evancho, post: 3287789, member: 84595"]Happy New Year. I have been collecting and studying coins for 63 years. I examined the coin carefully before buying it to determine what might be the chemical makeup of the spot on the rim. I use a 45 power binocular microscope inputted into a computer. I examined the reeded edge and the obverse of the coin and concluded it was a contaminant of some type that had corroded the copper content of the coin. NCS would not be able to conserve this type of corrosion and any attempt on removing it at this stage of age would damage the coin edge. I believe it is stabilized and will not encroach further into the coin. SEGS got this one right and I wanted this coin in their quality holder with the VAM variety designation. As for me, I buy the coin and not the holder. Grading and authentication is subjective. Yes I do have BIG BOY TPG counterfeit micro o VAM variety Silver Dollars in my collection. When I do talks on counterfeit and altered coins I always say to buy the book before you buy the coin and buy the coin, not the holder.[/QUOTE]</p><p><br /></p>
[QUOTE="Bob Evancho, post: 3287789, member: 84595"]Happy New Year. I have been collecting and studying coins for 63 years. I examined the coin carefully before buying it to determine what might be the chemical makeup of the spot on the rim. I use a 45 power binocular microscope inputted into a computer. I examined the reeded edge and the obverse of the coin and concluded it was a contaminant of some type that had corroded the copper content of the coin. NCS would not be able to conserve this type of corrosion and any attempt on removing it at this stage of age would damage the coin edge. I believe it is stabilized and will not encroach further into the coin. SEGS got this one right and I wanted this coin in their quality holder with the VAM variety designation. As for me, I buy the coin and not the holder. Grading and authentication is subjective. Yes I do have BIG BOY TPG counterfeit micro o VAM variety Silver Dollars in my collection. When I do talks on counterfeit and altered coins I always say to buy the book before you buy the coin and buy the coin, not the holder.[/QUOTE]
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