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 ...

— 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 ...

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 ...

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 ...

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 ...

The 1990 penny error coins represent some of the most exciting finds for modern coin collectors. This year marked a significant transition in U.S. Mint production ...

The specialist valued the coin at approximately £500 but noted that one specimen of this coin has previously sold for five ...

Brits have been urged to look out for four words on their £2 coin that could make it worth “30 times its value”. This phrase ...

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 ...