Could this rare £5 note be worth £50,000?
Four banknotes engraved with Harry Kane's face have been released into circulation - and the lucky person who finds one could be in for a windfall.
Revealed: the rarest 50p coins of 2018
The Royal Mint has revealed which 50p coins from 2017 have the lowest mintage figures - so do you have one of these rare coins in your change?
Rare 50p coins: the latest release is available right now
A rare collectible 50p coin design of Paddington bear has just been released - we explain how to get one, and find out how much it could be worth
The £2 coin turns 20: have you got a rare coin?
As the £2 coin turns 20 this year Which? reveals the rarest and most valuable designs in circulation that could earn you a pretty penny.
Could you find a rare 10p coin at the local chippie?
Fish and chip shops around the UK have been handing out special edition 10p coins. We look at how rare these A-Z coins are compared to valuable 50ps.
Revealed: the rare 50p coins worth more than £80
We find out the rarest and most valuable 50p coins, explain what makes a coin valuable, and give tips on what to watch out for when investing in coins
With the future of 1p and 2p coins under scrutiny, is your small change worth a fortune?
While the government consults on a proposal to scrap little-used currency, Which? looks at the rarest 1p and 2p coins and most valuable £50 banknotes.
New Beatrix Potter 50p designs unveiled: how rare are these coins?
Additions to the rare Beatrix Potter coin collection will be released into circulation later this year - along with collector's editions to buy now
Revealed: the dark side of the coin investment craze
A Which? Money investigation has uncovered unsavoury practices in the coin market - one that's growing in popularity but may not be a smart investment
Rare 50p coins: is this the least common of all?
The spare change in your pocket could contain one of the rarest coins in circulation, after the Royal Mint released a limited-run 50p piece commemorating Sir Isaac Newton. Just 375...