Royal Mint plant for striking. This first phase of the mint was officially opened on 17 December 1968 by the royal attendance of Queen Elizabeth II, Prince Philip and their son Prince Charles. Originally there were fears that the Royal family would face protests because of the Investiture of Prince Charles as the Prince of Wales; however, such protests failed to materialise. The second phase of construction began in 1973 and included the addition of a means to mint coins from virgin metals completing the full minting process. Upon completion the final cost for the land, buildings and plant came to £8
Royal Mint act as an air-raid shelter and even accepted employment of women for the first time. For most of the war the mint managed to escape the destruction of the Blitz until December 1940 when three members of staff were killed in an air-raid. Around the same time an auxiliary mint was set up at Pinewood Studios which had been requisitioned for the war effort. Staff and machinery from Tower Hill were moved to the site in Buckinghamshire where it started production in June 1941 and operated for the duration of the war. Over the course of the war the Royal