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 he persuaded the Royal Mint to allow him to experiment with the alloy and was ultimately able to produce 167,539 gold sovereigns. On a second occasion in 1868, it was again discovered that gold coins, this time totalling £500,000 worth, were being produced with inferior gold. Although the standard practise at the mint was for rejected coins (known as brockages) to be melted down, many entered general circulation and the mint was forced to return thousands of ounces of gold to the Bank of England. Although Ansell offered to re-melt the substandard coins, his offer was rejected causing a row