07/22/2026
The Dime That Should Not Exist: The Unique 1873-CC No Arrows Dime
A Tiny Weight Change Created America’s Rarest Carson City Coin that Sold for $3.6 Million
A microscopic change in federal law created one of the greatest rarities in American numismatics.
Congress increased the dime’s authorized weight by only 0.18 grain. That equals roughly 0.012 gram. Yet that almost invisible difference condemned virtually all freshly made Carson City dimes to destruction.
A federal weight change doomed 12,400 Carson City dimes, but one survived. Its journey from a 17-cent auction lot to a $3.6 million rarity forms one of the greatest stories in American numismatics.
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A Tiny Weight Change Created America’s Rarest Carson City Coin that Sold for $3.6 Million A microscopic change in federal law created one of the greatest