Silver Britannias have been released each year beginning in 1997, when a silver proof set was offered. In 1998 and in all subsequent even-numbered years the reverse design has depicted a standing Britannia figure. Beginning in 1999 and continuing in odd-numbered years, a series of alternate, non-repeating depictions of Britannia have replaced the standing figure on the reverse. Starting in 2013, the proof versions of the coin will feature a different design each year, while the bullion version of the coin will always feature the classic standing Britannia.