Watch List notes:

(g) Elizabeth II (1952-2022), 'Queen's 80th Birthday' Proof Five-Pounds, 2006, crowned bust right, by Ian Rank-Broadley, rev. a fanfare of regal trumpets, lettered edge, 12h (Spink L16), brilliant, as struck, No. 1426 of only 2,750 struck.

Estimate: £1800 - £2000