Great Britain
Victoria Proof Crown 1887 PR64 Cameo NGC, Royal mint, KM764, S-3921. Starkly contrasted between the raised devices and mirrored fields with eye-catching multicolored tone at the peripheries that attractively frames the centers. Certainly high-end overall, and undisputed as one of the most highly coveted proof issues of the 19th century.
Estimate: 4000-6000 USD