Check coin colour, if any coin is not the colour it should be, keep hold of it to investigate further. If it is a silver 2p or bronze 20p, see the images shown.

Check for coin rotation, the design on the coin should be the same way up as the Queen's head when the coin is turned over in the same way as the page of a book is turned. If not keep hold of it to investigate further, the image shown for the Britania £2 coin is one example of this error.

If it looks like a 10p, check it is not a silver 2p.

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The older 2 pence is easy to spot in silver, but remember to turn every "10p" over so you don't miss it.

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To check 20p coins quickly, do not look for a date as the date can be top left or bottom right. Find just the new designs shown in the top left image and flip the coin over to just check if ELIZABETH is written across the top. This will be an undated 20p.

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Always look for coins that are not even near to the colour they shoud be, looking for a not quite round 1p may help you find this one.

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Take home 2016 £1 coins received in change, check the micro dates shown in the image using a phone camera and zoom in. If 2017 shows: Error!

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Only 650,000 of these coins entered circulation, the top of the mast is usually just a line, if it looks like a flag is flying, you have found an error coin.

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2015 Get your Britannia £2 the right way up, turn it over like a book page, if the Queen's head is not the right way up, you have found an error.

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If your two pound coin looks all one colour, do not just assume it is a fake as it could be one of the rarest coin errors in circulation.

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If you have found this coin, register your find at coinhunter.co.uk