The Royal British Mint Celebrates 20th Anniversary of 2017 Silver Britannias2017 marks the 20th anniversary of the popular Silver Britannias. The Silver Brits were introduced in 1997 to much acclaim and since then has become a highly sought after collectors item for numismatic professionals. You can celebrate and buy your 2017 Silver Britannias today. No matter what the price of Silver does, the Silver Britannias have an increase in popularity. Options of single Silver coins and bulk Silver are available. Do not miss out on a chance to own a 20th anniversary 2017 Silver Britannia coin today.