The sovereign is a British sterling gold coin with a nominal value of one pound (£1), and contains 0.2354 troy ounces of pure gold. Struck since 1817, it was originally a circulating coin that was accepted in Britain and elsewhere in the world; it is now a bullion coin and is sometimes mounted in jewellery. In addition, circulation strikes and proof examples are often collected for their numismatic value. In most recent years, it has borne the design of Saint George and the Dragon on the reverse; the initials of the designer, Benedetto Pistrucci, are visible to the right of the date.