These are the 20 most valuable pennies, and they're worth a combined $5.5 million. Standards have been developed to evaluate coins. A modified version of the Sheldon Scale, which grades coins on a ...

Coin collectors are captivated by rare and valuable coins which carry historical significance. Highlighted examples include the 1794 Flowing Hair Silver Dollar and the 1787 Brasher Doubloon ...

A TINY mistake on your usual 20p coin could make it a whopping 350 times more valuable. You will need to look out for one small detail if you want to mint some extra cash. Coins become more ...

While buying known rare coins can be a costly ... thought that number is closer to 20. In 1943, copper and nickel were needed for the Allied war effort, so most pennies from this era were struck ...

The most valuable of those coins — a 1976-S Bicentennial Silver Quarter that came in with a very high grade — sold for $19,200 at auction a few years ago, according to the Chronicle ...

The Traveller Collection, thought to be the most expensive coin collection to ever come to auction, will be sold off over the next three years - with the first sale taking place on May 20.