Old pennies that have been stamped twice during the minting process and have been circulated throughout the United States by accident have long been selling for thousands of dollars. In January 2023, ...

When that coin crossed the auction block, it realized $15,862.50, a figure that has since become shorthand among collectors for how extreme mint errors can rewrite the value of a modern quarter. The ...

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 ...

People are being encouraged to examine their £1 coins for a tiny manufacturing flaw that could potentially increase their value to £2,500. This lucrative mistake can be "difficult to spot". In a video ...

Manufacturing errors might be annoying when it comes to most products, but they can be a massive moneymaker when it comes to collectible money. Errors increase the ...

This coin needs to feature a specific error to be particularly valuable ...

People are encouraged to scrutinise their loose change for a rare £2 coin that could be worth significantly more than its face value. An expert has suggested that ...

We've explained how to check if you have a rare coin CHECK your change, dig down the back of the sofa and smash open the piggy bank – you could be sitting on a goldmine. We all have loose change ...