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<p>[QUOTE="Tom B, post: 1924712, member: 11854"]I am familiar with gold that has been exposed to iodine or treated with putty as well as silver proofs that have had an enhanced or artificial cameo added and a few patterns or color combinations for toning that are likely not natural. On more rare occasions, in my opinion, there are coins that have been tooled that make it into holders, but this might be due to mechanical errors instead of missing the alteration. There may be others, too, but this is what I am thinking right now. These manipulations need not be all that stable if the coin is submitted to a TPG soon after manipulation. Please keep in mind that the TPGs might let a coin or multiple coins slide through with some type of unusual or novel manipulation, but then they become well versed in spotting the issue and few, if any, additional pieces get through. They are quite alert and vigilant, but folks might try anything to get a coin through or to improve a grade or perceived value.</p><p><br /></p><p>The TPGs have it <i>tough</i> in that they have to spot all these things as well as look at authenticity, hidden problems and overall grade. The job can be very difficult for the TPGs. In this sense, CAC has it a bit easier for some coins since, for example, a previously puttied gold might have had the putty dry and "turn", which then allows CAC to spot the putty with relative ease. Some folks might state that CAC is better because they spotted the putty, for example, but there is no assurance that they would have spotted it if they had seen the coin upon submission to the TPG.</p><p><br /></p><p>I cannot speak for what the TPGs and CAC will accept as a manipulation other than the TPGs definitely will accept a properly dipped coin and I expect that CAC does this, too. I don't have much experience with dipped coinage since I don't dip coins and I generally avoid pieces that I think were previously dipped, which leaves me less well equipped to answer this question.[/QUOTE]</p><p><br /></p>
[QUOTE="Tom B, post: 1924712, member: 11854"]I am familiar with gold that has been exposed to iodine or treated with putty as well as silver proofs that have had an enhanced or artificial cameo added and a few patterns or color combinations for toning that are likely not natural. On more rare occasions, in my opinion, there are coins that have been tooled that make it into holders, but this might be due to mechanical errors instead of missing the alteration. There may be others, too, but this is what I am thinking right now. These manipulations need not be all that stable if the coin is submitted to a TPG soon after manipulation. Please keep in mind that the TPGs might let a coin or multiple coins slide through with some type of unusual or novel manipulation, but then they become well versed in spotting the issue and few, if any, additional pieces get through. They are quite alert and vigilant, but folks might try anything to get a coin through or to improve a grade or perceived value. The TPGs have it [I]tough[/I] in that they have to spot all these things as well as look at authenticity, hidden problems and overall grade. The job can be very difficult for the TPGs. In this sense, CAC has it a bit easier for some coins since, for example, a previously puttied gold might have had the putty dry and "turn", which then allows CAC to spot the putty with relative ease. Some folks might state that CAC is better because they spotted the putty, for example, but there is no assurance that they would have spotted it if they had seen the coin upon submission to the TPG. I cannot speak for what the TPGs and CAC will accept as a manipulation other than the TPGs definitely will accept a properly dipped coin and I expect that CAC does this, too. I don't have much experience with dipped coinage since I don't dip coins and I generally avoid pieces that I think were previously dipped, which leaves me less well equipped to answer this question.[/QUOTE]
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