Glossary

Categories

Brockages
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Counterbrockages
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Die Adjustment Strikes
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Die Caps
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Die Trials
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Double Denomination
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Double/Multiple Strikes
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Dual Countries
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Experimental Blanks
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Experimental Strikes
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Experimental Surface
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Feeder Finger Strikes
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Gold Die Trials
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Gold Errors
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Gold Off-Metals
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Martha Washington
Test Pieces

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Mated Pairs
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Mules
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Multiple Errors
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Off-Centers
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Off-Metals
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Overstrikes
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Pattern Die Trials
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Pattern Errors
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Pattern Mules
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Platinum Errors
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Proof Errors
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Spectacular Errors
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Transitional Errors
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Two-Headed Coins
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Two-Tailed Coins
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Uniface Die Trials


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Dual Countries

Coins struck involving two different countries are extremely rare. There are only a few known struck in gold including this incredible Mexico 1916 Oaxaca Gold 60 Pesos was struck on a U.S. $10 Liberty.

Here is a comparison with a regular Gold 60 Pesos and $10 Liberty:

comparison