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 ...
A TINY mistake on your usual 20p coin could make it a whopping 350 times more valuable. You will need to look out for one small detail if you want to mint some extra cash. Coins become more ...
He further detailed that collectors should be on the lookout for a shield design 20p coin that lacks a date on the head side. "So, what you want to be checking for on all of your shield 20p coins ...
An unusual coin could net its owner over 250 times its face value after an error when it was made. The rare 20p coin was one of an unknown number released by the ...
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