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 ...

The 2017 coin, which features Queen Elizabeth II on the front and the Nations of the Crown design on the reverse, sold for £112.08 ...

A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and some collectors are paying as much as $10,000 for the affected 25-cent pieces.

Stumbling upon what might be a rare coin or unusual bill is more common than you think. People discover these hidden ...

— Melrose resident Joe Andrews is longtime coin appraiser and an expert in the field of numismatics. His “Coin Corner” is a recurring column in the Free Press and WickedLocalMelrose.com. He has ...

You never know when you might come across a valuable error coin, so it helps to know what to look for. Error coins can be divided into the following general ...

They must feature specific errors to be particularly valuable ...

A rare 2001-D Lincoln cent, a "mule error" coin with a dime reverse, has fetched over $100,000 at auction. This unique coin, created by a minting mistake in Denver, features Abraham Lincoln on the ...

Like the leaning tower of Pisa, error coins demonstrate the alluring appeal of human error. Error coins account for some of the most rare and valuable collectable ...

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 ...