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<p>[QUOTE="kaparthy, post: 17637, member: 57463"]I wrote an artiicle for the ANA Numismatist about "Cameo Proof" coins. These are the highest state of the minter's art. A cameo proof has frosty devices and legends against a mirror field. They grade about PR-66 and above.</p><p><br /></p><p>There is a story about a proof dime from San Francisco being given to a dignitary's daughter who spent it on ice cream. A proof coin that is circulated will obviously have a lower numerical grade, but still be proof. PR-40, for instance.</p><p><br /></p><p>So, not all proof coins have the same grade. Even new from the Mint, they suffer damage that lowers their grade. Even in the making, some are struck up under full pressure from new dies, while others are struck with reduced pressure uinder old dies. The former grade higher than the latter, of course.</p><p><br /></p><p>As for your second question, this seems not to be a problem. If you patronize one of the Big Four firms (ANACS, ICG, NGC or PCGS) you will have fewer problems overall. Getting your coins back is not a problem in this day. NCG is the official grading service of the ANA. PCGS is probably the overall market leader. ICG was founded by people from the ANA authentication and education departments. ANACS was the ANA authentication service before it was sold to Amos Press, publishers of Coin World.</p><p><br /></p><p>Michael</p><p>ANA R-162953[/QUOTE]</p><p><br /></p>
[QUOTE="kaparthy, post: 17637, member: 57463"]I wrote an artiicle for the ANA Numismatist about "Cameo Proof" coins. These are the highest state of the minter's art. A cameo proof has frosty devices and legends against a mirror field. They grade about PR-66 and above. There is a story about a proof dime from San Francisco being given to a dignitary's daughter who spent it on ice cream. A proof coin that is circulated will obviously have a lower numerical grade, but still be proof. PR-40, for instance. So, not all proof coins have the same grade. Even new from the Mint, they suffer damage that lowers their grade. Even in the making, some are struck up under full pressure from new dies, while others are struck with reduced pressure uinder old dies. The former grade higher than the latter, of course. As for your second question, this seems not to be a problem. If you patronize one of the Big Four firms (ANACS, ICG, NGC or PCGS) you will have fewer problems overall. Getting your coins back is not a problem in this day. NCG is the official grading service of the ANA. PCGS is probably the overall market leader. ICG was founded by people from the ANA authentication and education departments. ANACS was the ANA authentication service before it was sold to Amos Press, publishers of Coin World. Michael ANA R-162953[/QUOTE]
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Grading of proof coins ??
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