Watch List notes:

(g) George V (1910-1936), Proof Sovereign, 1911, by Mackennal and Pistrucci, bare head left, rev. St George and Dragon, 8.01g, 12h (W&R 416; Spink 3996), brilliant, much as struck, , This lot is also offered as a group lot in lot 284. Whichever reaches higher hammer price will sell and the other option will be withdrawn..
Provenance
The Gemini Collection
, ,
NGC PF64+ CAMEO (Certification #5879473-003)
, https://www.ngccoin.com/certlookup/5879473-003/64/
Estimate: £800 - £1,000