In 1768, one of the largest veins of copper in the world was found at Parys Mountain on the island of Anglesey in the northwest of Wales. In 1785, Thomas Williams (the "Copper King"), acting as a representative of the Parys Mine Company, met with the master of the British mint to propose that regal copper coins be struck using a counterfeit-deterrent method of edge lettering, and offering this technology to the mint free of charge. The stipulation was that the supply of the copper for these new coins would come from the Parys Mine Company. The British mint master did not entertain the offer.