Glossary
CategoriesBonded Coins Brockages Counterbrockages Die Adjustment Strikes Die Caps Die Trials Double Denomination Double/Multiple Strikes Dual Countries Experimental Blanks Experimental Strikes Experimental Surface Feeder Finger Strikes Galvanos Gold Die Trials Gold Errors Gold Off-Metals Hub Trials Intentional Errors Martha Washington Test Pieces Mated Pairs Mules Multiple Errors Off-Centers Off-Metals Overstrikes Pattern Die Trials Pattern Errors Pattern Mules Plasters Platinum Errors Proof Errors Specimens Spectacular Errors Transitional Errors Two-Headed Coins Two-Tailed Coins 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.   |
