Watch List notes:

(g) William IV (1830-1837), Pattern Two-Pounds, 1831, by Merlen, bare head right, W.W. on truncation, rev. crowned shield on mantle, edge plain, 15.88g, 5h (Murdoch III, 438; King 206; W&R 258 [R3]; Spink 3828), a small edge bruise by date and faint surface hairlines in brilliant fields, otherwise a charming proof, about extremely fine, rare.
Provenance
From the Hayleigh Collection
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NGC PF61 ULTRA CAMEO (Certification #5879378-008)
, https://www.ngccoin.com/certlookup/5879378-007/61/
Estimate: £4,000 - £6,000