Coin Terminology and Glossary
The Coin Collecting Dictionary includes 546 titles used widely in the coin
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Specimen Proof (SP-70 or PF-70)
- Explanation: Grade: Although very rarely seen, these are attainable grades, since Specimens and Proofs are generally double struck on specially prepared, polished blanks using specially prepared dies on a slow, high pressure press, and the pieces are immediately hand picked off the press with gloved hands and carefully placed in protective holders.
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