die trials

The 1910 Lincoln Cent With No Reverse and the Debate That Changed Its Story

Errors and Varieties CoinWeek - July 27, 2026

The Unique 1910 Lincoln Cent Uniface Die Trial: The Full Story PCGS called it a uniface test strike. Mike Diamond argued that it looked like...

Unique Franklin Half Dollar on Wrong Planchet

Unique 1963 Franklin Half Dollar on Wrong Planchet May Be an Experimental Test Piece

Errors and Varieties Mike Byers - March 23, 2026

A Discovery That Rewrites What We Know Every so often, a coin surfaces that forces collectors to rethink what is possible. This newly documented 1963...

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die trials

Related Articles on CoinWeek

The 1910 Lincoln Cent With No Reverse and the Debate That Changed Its Story

Unique 1963 Franklin Half Dollar on Wrong Planchet May Be an Experimental Test Piece

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