Rare 20p coin worth more than 250 times its face value - what to look for
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 ...
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Check your change for a coin that looks like 20p but is worth £1,700
The coin in question may appear to be an ordinary 20 pence piece at ... the 20p denomination in 1982. At that time, it was undecided whether the coin would have a value of 20p or 25p.