It must have the right date on it and a specific mistake - so it's worth checking your loose change.
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Check your coin jars, wallets and pockets for this extremely rare coin that could be worth a fortune.
A rare 1p piece is considered to be one of the most valuable in the world and could fetch more than £140,000 if it were to ever be..
A rare 50p coin with a Viking ship on it is worth 'crazy money' and could sell for up to £850 - but there's one major catch,..
