Glossary
CategoriesBrockages Counterbrockages Die Adjustment Strikes Die Caps Die Trials Double Denomination Double/Multiple Strikes Dual Countries Experimental Blanks Experimental Strikes Experimental Surface Feeder Finger Strikes Gold Die Trials Gold Errors Gold Off-Metals Intentional Errors Martha Washington Test Pieces Mated Pairs Mules Multiple Errors Off-Centers Off-Metals Overstrikes Pattern Die Trials Pattern Errors Pattern Mules Platinum Errors Proof Errors Specimens Spectacular Errors Transitional Errors Two-Headed Coins Two-Tailed Coins Uniface Die Trials Unique Coins |
  Proof ErrorsPictured above is one of the most spectacular Proof Ike Dollar Mint Errors of all time. Not only is it a spectacular double struck, it is also struck on a clad half dollar planchet. |
