CNG 112, Lot: 844. Estimate $4000. Sold for $5500. This amount does not include the buyer’s fee.

HANOVER. William IV. 1830-1837. Proof AV Half Sovereign (17mm, 3.96 g, 6h). Small size. London mint. Dated 1831. Head right / Crowned coat-of-arms; shield in ornate frame. Edge: plain. Marsh, Half 409E; W&R 267; SCBC 3830. In NGC encapsulation, 4740160-005, graded PF 63 ULTRA CAMEO.

From the G. W. K. Roberts Collection.