Glossary

Categories

Bonded Coins
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Broadstrikes
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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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Dies
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Double Denomination
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Double/Multiple Strikes
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Dual Countries
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Essay Trial Strikes
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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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Foreign Coins Struck
on U.S. Planchets

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Galvanos
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Gold Die Trials
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Gold Errors
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Gold Off-Metals
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Hub Trials
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Indents
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Intentional Errors
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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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Plaster Models
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Platinum Errors
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Proof Errors
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SMS Mint Errors
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Specimens
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Spectacular Errors
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Struck Scrap
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Struck Thru
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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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Unique Coins


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Uniface Die Trials

Uniface Die Trials are deliberate, one sided impressions using either the obverse or reverse die. These Die Trials can be from finished or unfinished dies. Sometimes hubs are used, rather than the actual finished die. Metals other than the adopted composition are frequently used to strike Uniface Die Trials.

This is the only known 1911 Great Britain 5 Pound Die Trial. It was struck on an oversized lead planchet with a width of 44.32mm and is 5.69mm thick. It is a uniface die trial of the finished obverse die used strike the 1911 gold 5 Pound in proof. It was struck in high relief exhibiting a full strike and detail, which is unusual with lead die trials.