From the gold dollar coin to the $10,000 bill ... Crawford, the Secretary of the Treasury from 1815-1825, on the front. Most fractional currency was later redeemed for coins and destroyed ...

If you're hanging on to a $1 coin, it might be worth much more than it appears.. Here are four ways to check if your coin can be sold for almost $14,000, according to financial review site Tododisca.