The Original with 0.999 Purity. While silver Britannia has always offered beauty and reliability it now also gives you 0.999 purity. The legendary figure of Britannia has symbolised Britain’s strength and integrity on coinage since Roman times. Little wonder then that the silver Britannia, with such a depth of history behind it, has been a popular choice with bullion investors ever since its introduction in 1997. This new specification combined with its tradition and integrity gives new life for today’s investment customer.