GREAT BRITAIN, British Coins, England, George III: Proof Farthing, 1798, struck in silver, by C H Küchler, Obv small laureate and draped bust right, date on raised rim below, Rev Britannia seated left, denomination on rim below, edge plain (Peck 1206A, KF5). A few light handling marks, otherwise practically as struck and extremely rare. ex Brand, Norweb, Debens and Cooke collections Estimate: US$3,500-4,500