The 2010 Gold Proof Britannia One Hundred Pounds coin is a distinguished release from The Royal Mint, celebrated for its artistry and craftsmanship.
 
Design Details:
Obverse: Features the crowned effigy of Queen Elizabeth II, designed by Ian Rank-Broadley. The inscription reads "ELIZABETH II D G REG FID DEF 100 POUNDS," signifying "Elizabeth II, by the Grace of God, Queen, Defender of the Faith."
vcoins.com
Reverse: Showcases a right-facing profile of Britannia wearing a helmet, symbolizing strength and tradition. This design was crafted by artist Susie Zamit for the 2010 edition.