Watch List notes:

(g) Victoria (1837-1901), Proof Sovereign, 1887, 'Jubilee' bust right, rev. St George and dragon, edge milled (W&R 333; S.3866B), faint marks in otherwise brilliant fields, attractive cameo definition, good extremely fine.
provenance
Glendining, 8 April 1992, lot 435

In PCGS holder, graded PR62 DCAM - Certificate #35844350
Estimate: £1800 - £2200