Glossary
CategoriesBonded Coins Broadstrikes Brockages Counterbrockages Die Adjustment Strikes Die Caps Die Trials Double Denomination Double/Multiple Strikes Dual Countries Dual Mint Marks Essay Trial Strikes Experimental Blanks Experimental Strikes Experimental Surface Feeder Finger Strikes Foreign Coins Struck on U.S. Planchets Galvanos Gold Die Trials Gold Errors Gold Off-Metals Hub Trials Indents Intentional Errors Martha Washington Test Pieces Mated Pairs Mules Multiple Errors Off-Centers Off-Metals Overstrikes Pattern Die Trials Pattern Errors Pattern Mules Plaster Models Platinum Errors Proof Errors SMS Mint Errors Specimens Spectacular Errors Struck Scrap Struck Thru Transitional Errors Two-Headed Coins Two-Tailed Coins Uncanceled Dies Uniface Die Trials Unique Coins |
  SpecimensAn example is this unique 1873 Closed 3 Five Dollar gold piece that was certified by NGC as a Specimen strike. It is the only such piece certified by either PCGS or NGC. It has the visual characteristics of a highly contrasted cameo proof, yet was struck from circulation dies. This unique 1873 $5 Closed 3 Specimen strike has an experimental finish and is a hybrid between a proof and a mint state coin. This specimen strike was from specially prepared mint state dies that created a specimen with the appearance of a proof.   |
