One can keep gold and silver in the form of an ingot or in form of coins and by using their service one even has an option to get the same delivered at an independent bank or depository.
Gold has been in demand since ancient times to include Egyptians, Greeks and Romans to more modern times and thus make sure to add the same to your portfolio. make sure that you add silver in your portfolio as worldwide its supply is reducing and demand is increasing and thus one will get god amount of profit by holding the same.