1 oz. Pure Silver Gold-Plated Coin - The 1908 Sovereign: 110th Anniversary of the Royal Canadian Mint. A fully gold-plated 99.99% pure silver tribute to the 1908 British gold sovereign coin. The British gold sovereign was one of the world’s most famous gold coin of the modern era, and the flagship coin of the Royal Mint. And for the first time in 1908, a limited number of these sovereigns were minted at Ottawa facility. Step into the past with a fully gold-plated 99.99% pure silver tribute to the 1908 British gold sovereign coin. With the exception of a proof finish and an amended date of “2018”, the reverse design is nearly identical to the original sovereign that was struck 110 years ago, including the same “C” mint mark that denotes the country of production.