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<p>[QUOTE=&quot;David Colquhoun, post: 3294365, member: 94594&quot;]This coin is supposed to be a cameo pr70 .I understand it is not graded by PCGS or NGC so probably not the right grade.Had the coin about a year but it has started to go misty grey ,I also have 1980s proof sets going the same way.should I crack the coins out of sets and try to dip them or keep them in sets to see what tone they become?</p><p>What do you think</p><p>Answers and comments much appreciated thanks</p><p>David c[/QUOTE]</p><p><br /></p>

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