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The Dime That Should Not Exist: The Unique 1873-CC No Arrows Dime

Summary by CoinWeek
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 dim…
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CoinWeek broke the news on Wednesday, July 22, 2026.
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