Watch List notes:

GAUL, Massalia. 520-460 BC. Obol (Silver, 10 mm, 1.10 g), Milesian standard. Female (Artemis?) head to left, her hair bound by a taenia and wearing a disc earring. Rev. Irregular incuse square. Furtwängler Annexe 2, 11. Maurel 38. Rare. Struck in high relief and attractively toned. Some scratches on the reverse, otherwise, about extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, ex Vinchon 11 April 1988, 564.