Watch List notes:

(g) George VI (1936-1952), Coronation Specimen Gold Set, 1937 (4), Proof Five-Pounds to Half-Sovereign (Stratos 288; Spink PS15), a fine set, brilliant uncirculated, with personalised Royal Mint case of issue (4).
Certified by NGC (#5878640):,
i) 5-Pounds, PF64 (001),
ii) 2-Pounds, PF64 (002),
iii) Sovereign, PF65 (003),
iv) Half-Sovereign, PF63 (004),
Estimate: £6,000 - £8,000