Most of us don’t think much about the type of currency we use. Still, as our society has evolved, so has the way we pay for things. For instance, it seems like we hardly ever need to deal with loose coins. But sometimes that change rattling around our pockets is worth more than the metal they’re made with.

In fact, those coins could be more valuable than you ever imagined! For instance, in 1894, a few dozen dimes—known as Barber dimes—were minted. When you learn just how much they’re worth today, you might make a beeline for your couch cushions…

Chances are, whenever you pay for an item in cash and get a handful of change back, you don’t spend much time inspecting it. You’re in too much of a rush! There’s a very good reason you should, though…