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Determining lincoln proofs
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<p>[QUOTE="cladking, post: 66310, member: 68"]Look at the rims. They should be squared off on a proof but rarely on an unc.</p><p><br /></p><p>Proof coins are struck multiple times (usually twice) So detail will almost always </p><p>be complete and normal planchet defects will be absent. The fields of a proof </p><p>are usually very flat. </p><p><br /></p><p>These attribute are often present on the SMS coins also. </p><p><br /></p><p>There's rarely much disagreement about what is unc and what is proof, but there </p><p>are some very high quality uncs which are sometimes struck with dies that have </p><p>undergone some of the steps to make them proof dies. There are also branch mint </p><p>proofs and extremely PL uncs. </p><p><br /></p><p>At least some of the cent and quarter dies were used used in San Francisco to </p><p>strike circulation issues. It's possible other SMS dies were used elsewhere.[/QUOTE]</p><p><br /></p>
[QUOTE="cladking, post: 66310, member: 68"]Look at the rims. They should be squared off on a proof but rarely on an unc. Proof coins are struck multiple times (usually twice) So detail will almost always be complete and normal planchet defects will be absent. The fields of a proof are usually very flat. These attribute are often present on the SMS coins also. There's rarely much disagreement about what is unc and what is proof, but there are some very high quality uncs which are sometimes struck with dies that have undergone some of the steps to make them proof dies. There are also branch mint proofs and extremely PL uncs. At least some of the cent and quarter dies were used used in San Francisco to strike circulation issues. It's possible other SMS dies were used elsewhere.[/QUOTE]
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Determining lincoln proofs
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