Elizabeth II gold proof Five-Pounds, 2014

Obverse - Crowned head right, IRB initials below for designer Ian Rank-Broadley, Latin legend and toothed border surrounding, ELIZABETH. II. DEI. GRA REGINA. FID. DEF

Reverse - St George and dragon right, date in exergue, PISTRUCCI in full to upper left of exergue, for designer Benedetto Pistrucci, broader rim

39.94g 

Lustrous mint state in NGC holder graded PF70 ULTRA CAMEO, ONE OF FIRST 100 STRUCK.

Official mintage: 750

The Latin legend translates as "Queen Elizabeth the second, by the grace of God, Defender of the Faith."

This reverse design revived that used for the earliest modern Five Pound piece issued as a memorial to King George III dated 1820. That particular piece had a mintage of only 25 lettered edge pieces and today is one of the top five most valuable British coins.