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The 10 most valuable certified U.S. federal coins ever sold
Published · Reviewed
A ranking built on documented public sales, with one record per coin and date. Discover the rarities behind the results.
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Numismatic research, rankings and news. For collectors and anyone with an interest in coins, their history and what's next.
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Argentina's most valuable certified coins, from 1881 onward
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A closer look at Argentine rarities through documented public sales and a clearly defined ranking methodology.
The 10 most valuable certified U.S. mint errors ever sold
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Wrong planchets, double strikes and other production errors: exceptional coins and the public sales that put them on the map.
The 10 most valuable certified U.S. patterns and essays ever sold
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Experimental designs and trial pieces, with their own ranking and a distinct place in the history of U.S. coinage.