As with just about any asset, a coin's value is determined by its market demand. This means that coins in short supply often see higher demand -- and higher values. With coins, supplies are ...

This threepence coin made prior to the American Revolution sold for a seven-figure sum, after being discovered hidden in some furniture.

Pennies will continue to be in circulation and can be used, deposited or kept indefinitely. There just won't be as many.

Alaska (1917-1922) Edw. W. Willis bimetallic bingles. This is part of a three-piece set with the denominations of 25, 50 and ...