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

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 ...

The earliest of the American Arts gold medals were comprised of gold with some copper, while the later medals are gold mixed with silver alloy. Why don’t the gold and silver medals trade for a higher ...