Watch List notes:

(g) Elizabeth II (1952-2022), Proof Three Coin Set, 2013, Sovereign, Half-Sovereign and Quarter-Sovereign, crowned bust right, by Ian Rank-Broadley, rev. St George and Dragon, milled edges (Spink PGS69), brilliant, as struck, in Royal Mint case of issue, No. 519 of 1,000 struck (3).

Estimate: £1200 - £1400