Ultra-rare 25p coin will fetch up to £700
The 25p coin on sale today is thought to have been made by a Royal Mint craftsmen before the 20p denomination was released ..
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Rare 25p coin sells for 60 times its face value
An ultra-rare 25p coin has sold for ... same shape as an ordinary 20p piece. There are thought to be about 50 in circulation, with even fewer made from nickel brass like the one sold by RWB ...