Watch List notes:

George IV (1820-1830), Bronzed Proof Penny, 1826, laureate head left, rev. Britannia seated right, shield with two incuse lines, edge plain, 18.78g, 12h (BMC [Peck], 1423, rev. A; Spink 3823), brilliant surfaces, good extremely fine, , 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 Whichever reaches higher hammer price will sell and the other option will be withdrawn..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 PF64 BN (Certification #5880298-009)
, https://www.ngccoin.com/certlookup/5880298-009/64/
Estimate: £400 - £600