An expert has highlighted the most valuable pre-decimal pennies in Britain - and this rare coin is among them.

"Cannot fault it, it has an amazing image quality with a great quality speaker. Very good value for money, worth every penny.

A coin expert has shared a simple way to spot a rare penny worth £500 - and it all comes down to the image on the reverse ...

Coin collectors will pay a tidy sum for this piece if it features a specific image that is 'difficult to spot' ...