Watch List notes:

George III (1760-1820), Proof Penny, 1806, by Kuchler, late Soho, struck in copper, laureate and draped bust right, K. on striated truncation, rev. Britannia seated left, edge centrally engrailed, 18.94g, 12h (BMC 1324; Selig 1301), lustrous, extremely fine, rare.

Estimate: £400 - £500