Watch List notes:

BRITISH COINS. Ancient British. A Collection Of The Coins Illustrated In Silver Heads, Royal Tales. Continental Celtic and Imported Issues: Western France, Uncertain Tribes (late 3rd to early 2nd Century BC), Gold Stater, Sainte-Eanne Type, in imitation of the gold staters of Philip II of Macedon, laureate head of Apollo right, rev ΦIΛIΠΠOY, biga galloping right, charioteer holding reins and kentron, trident-head below horses, 8.56g, 12h (SHRT, p.330; Allen, BMC 12; SLM 370). Broad flan, extremely fine and very rare.
ex The New York Sale XVII, Baldwin's, 9 January 2008, lot 145

Estimate: £7000-9000