If you look in your wallet right now chances are you’d find at least one $1 bill. You probably don’t think much about your $1 bills. After all, it’s not like $1 can even get you anything these days. However, you might want to take a closer look at the $1 bills you have lying around — if they have a certain serial number stamped on them, they could be worth a lot more than a single dollar.  

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