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<p>[QUOTE="TheFinn, post: 2884480, member: 90102"]AT. The colors, blue goldish brown and purple with no graduation between them. Those colors are the tell. Notice that the blues look like what happens if you heat a coin with a match or lighter. One way to learn is to experiment. Get some nice AU-Unc 1964 Washington Quarters that are just junk silver and try putting them in a SBA dollar tube, light a match and put it inside (not touching the coin) and block the end so the match runs out of air. See what the unburnt sulfur does. Lot of things like that and you will see what colors come out. PCGS has done a big dis-service in grading ASE's as legit toning with wild colors. Nothing natural can tone like that that quickly. At least ANACS grades the MS60 Artificially Toned.[/QUOTE]</p><p><br /></p>
[QUOTE="TheFinn, post: 2884480, member: 90102"]AT. The colors, blue goldish brown and purple with no graduation between them. Those colors are the tell. Notice that the blues look like what happens if you heat a coin with a match or lighter. One way to learn is to experiment. Get some nice AU-Unc 1964 Washington Quarters that are just junk silver and try putting them in a SBA dollar tube, light a match and put it inside (not touching the coin) and block the end so the match runs out of air. See what the unburnt sulfur does. Lot of things like that and you will see what colors come out. PCGS has done a big dis-service in grading ASE's as legit toning with wild colors. Nothing natural can tone like that that quickly. At least ANACS grades the MS60 Artificially Toned.[/QUOTE]
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