Watch List notes:

BRITISH COINS, George I, Silver Proof Farthing, 1717, "dump" issue struck on a thick flan, laureate and cuirassed bust right, rev struck en médaille, Britannia seated on globe with spear, shield and spray of leaves, date below in exergue, edge plain, 6.82g (Peck 785; S 3661). Good extremely fine, attractively toned and rare.
ex Spink Numismatic Circular, February 2007, item MC3237, illustrated on front cover

Estimate: £2000-2500