Watch List notes:

(g) George IV (1820-1830), Proof Five-Pounds, 1826 SEPTIMO, bare head left, rev. crowned shield in mantle, seven semée of hearts, DECUS ET TUTAMEN • ANNO REGNI SEPTIMO • downwards on edge, 40.15g, 6h (W&R 213 [R3]; Spink 3797), a minor surface fault to rim and light hairlines across brilliant surfaces, otherwise good extremely fine, rare, only 150 reportedly struck, , 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 Whichever reaches higher hammer price will sell and the other option will be withdrawn..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 PF61 (Certification #5880298-001)
, https://www.ngccoin.com/certlookup/5880298-001/61/
Estimate: £20,000 - £30,000