Watch List notes:

George III (1760-1820), Pattern Farthing, 1799, by Kulcher, late Soho, struck in gilt copper, laureate and draped bust right, raised dot on truncation, rev. Britannia seated left, SOHO on rocks, centrally engrailed edge, 6.33g, 6h (cf. BMC [Peck] 1268; Selig -), a trace of verdigris, otherwise the gilding bright and attractive, extremely fine, extremely rare.
Peck lists this variety in copper only, however it is also known in both gilt and bronzed copper.
Estimate: £300 - £400