These four rare 1980s coins could be hiding in your change -- and they might be worth hundreds or even thousands to collectors.

If you are just starting, you may receive fewer spins and coins, so keep playing and leveling up to gain more free stuff!

The coins have been dubbed the 'holy grail' of change collecting and if you find one it could be worth a lot more than 20p ...

With that in mind, make sure to claim free rewards as soon as possible. All you need to do is click on the links above on a device that has Coin Master installed and let the technology do the rest ...