Elizabeth II 2010 gold proof Crown William and Kate Engagement

Elizabeth II (1952 -), gold proof Royal Mint Crown, 2010, to celebrate the engagement of Prince William and Catherine Middleton, crowned head right, IRB initials below for designer Ian Rank-Broadley, Latin legend and border surrounding, ALDERNEY FIVE POUNDS ELIZABETH II 2010, rev. a design by Matthew Bonaccorsi of portraits of His Royal Highness Prince William and Catherine Middleton, CELEBRATING THE ENGAGEMENT OF WILLIAM AND CATHERINE surrounding, 39.94g. Lustrous proof state, in original walnut Royal Mint box with certificate of authenticity number 138.