HANOVER. William IV. 1830-1837. Proof AV Sovereign (21mm, 7.98 g, 6h). London mint. Dated 1831. Bare second head right / Crowned coat-of-arms. Edge: plain. Bentley 24; W&R 261; Marsh 16D; MCE 489; SCBC 3829B. In NGC encapsulation 4745877-004, graded PF 63 Ultra Cameo.
From the G.W.K. Roberts Collection.