Watch List notes:

George IV (1820-1830), Proof Sixpence, 1826, bare head left, rev. lion atop crown, edge milled, 2.85g, 6h (ESC 2435 [1663]; Spink 3815), slight die capping to rim between 6 and 11 o'clock, attractive toning overlying brilliant surfaces, good extremely fine, rare, , This lot is also offered as a group lot in lot 279. Whichever reaches higher hammer price will sell and the other option will be withdrawn..
Provenance
The Gemini Collection
, ,
NGC PF63 (Certification #5880298-008)
, https://www.ngccoin.com/certlookup/5880298-008/63/
Estimate: £300 - £400