Around 4.5million were released after the government triggered the transition period last year - with more than 9million now in people's pockets, the Royal Mint said. "Whilst the Brexit 50p isn't particularly rare, there's no denying the popularity of this coin's theme," she said. A Royal Mint spokesman told The Mirror demand may have been triggered by the one-year anniversary of the transition period. See our guide on rare 50p coins and valuable money, here. These are the coins the Royal Mint says are the rarest in circulation - because of their mintage numbers.

Source: Daily Mirror March 12, 2021 12:24 UTC