Watch List notes:

William IV (1830-1837), Bronzed Proof Penny, 1831, bare head right, plain truncation, rev. Britannia seated right, edge plain, 18.74g, 11h (Pywell-Phillips -; BMC [Peck] 1457; Spink 3845), some carbon spotting, otherwise brilliant, mint state, , This lot is also offered as a group lot in lot 280. Whichever reaches higher hammer price will sell and the other option will be withdrawn..
Provenance
The Gemini Collection
, ,
NGC PF64 BN (Certification #5880299-006)
, https://www.ngccoin.com/certlookup/5880299-006/64/
Estimate: £400 - £600