You never know when you might come across a valuable error coin, so it helps to know what to look for. Here's a look at five ...

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 limited ...

Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in error coins that are super valuable and ...

COINS with rare designs are known to fetch thousands of pounds at auction but ones that have been minted with a mistake on them are also selling for a lot of money. The Royal Mint manufactures ...