While collecting coins is much more popular than paper currency due to coins’ long history and extreme rarity, there is still hidden value in everyday U.S. dollar bills. In fact, a single mark ...

Weirdly, this profoundly boring fact is significant. It is the reason — the only reason — that getting rid of the one-dollar bill and forcing everybody to use dollar coins would provide a ...

These are the dollar bills that could be worth up to $6,000: How do I know if I have one? This is one of the most valuable variations: A “ladder” serial number, either ascending (12345678 ...