Watch List notes:

(g) Victoria (1837-1901), Sovereign, 1887, London, 'Jubilee' bust left, angled J. E. B., rev. St George and Dragon, edge milled, 8.02g, 12h (DISH L7; Bentley 323; Marsh 125; MCE 547; Spink 3866), attractive mint state.
Provenance
The Apollo Collection
, ,
, NGC MS64 (Certification #5880294-009)
, https://www.ngccoin.com/certlookup/5880294-009/64/
Estimate: £300 - £350