Watch List notes:

(g) Elizabeth II (1952-2022), Proof Britannia Four Coin Set, 1987, struck in fine gold, 100 Pounds to 10 Pounds, crowned head right, rev. Britannia standing facing left, milled edge, 34.00g; 17.02g; 8.53g; 3.40g (Spink PBG01), a handful of small friction marks, otherwise brilliant and as struck, in original Royal Mint case of issue, No. 04000 (4).

Estimate: £2800 - £3000