A U.S. Bureau of Engraving and Printing error sent six million pairs of $1 bills with duplicate serial numbers into circulation -- and currency collectors are willing to pay a premium to get their hands on a pair. Read this story
A U.S. Bureau of Engraving and Printing error sent six million pairs of $1 bills with duplicate serial numbers into circulation -- and currency collectors are willing to pay a premium to get their hands on a pair. Read this story
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