Watch List notes:

The Hardcastle Collection | PROOF 62+ CAMEO ~ [Top Pop] | George III (1760-1820), Proof Penny, 1797, 'Cartwheel' type, in gilt copper, 'Late Soho', laureate and draped bust right, • K •: on truncation, rev. Britannia seated left, holding olive branch and trident, ship in left field, 31.46g (Peck 1117; S.3777), a few contact marks but with otherwise brilliant surfaces, a bold extremely fine, in NGC holder, graded PF62+ CAMEO (Cert. #5878622-002) [*Single Finest*].
https://www.ngccoin.com/certlookup/5878622-002/62/
Estimate: £400 - £500