Great Britain
George IV Proof Crown 1821 PR64 NGC, Royal mint, KM680.1, S-3805, Secundo edge. NGC and PCGS have graded only a combined 19 examples of the proof 1821 Secundo edge crown, with the present specimen tied for being the finest known. This piece has exceptional natural gray toning with underlying reflectivity and subtle blue and purple hues throughout. A coin for the true connoisseur of quality.
Estimate: 7000-9000 USD