The UK 50p coin was first introduced on October 14, 1969. How did the UK 50p coin come into existence? It is a denomination of the British pound sterling and is equivalent to half a pound. The UK 50p coin is a widely recognized and highly collectible coin that has a rich history dating back to its introduction in 1969. The 50p coin features various designs on its reverse side, making it a collector's item for many numismatists. It is a circular coin with a diameter of 27.3mm and is made of nickel-brass. The UK 50p coin is a widely recognized and popular coin in the United Kingdom.