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 Spectacular Errors Transitional Errors Two-Headed Coins Two-Tailed Coins Uniface Die Trials |
  Gold ErrorsThere are only a few known double struck (or multiple struck) U.S. Gold coins. Off-center strikes are also extremely scarce. This spectacular $20 Liberty Gold Piece is the only off-center known. It was struck 15% off-center and certified MS 63 by PCGS. |
