MYSIA. Lampsakos. Circa 500-450 BC. Obol (Silver, 10 mm, 0.79 g, 12 h). Janiform female head, wearing a double stephane and a single circular earring. Rev. Head of Athena to left, wearing crestless Corinthian helmet; all within a shallow incuse square. Baldwin, Lampsakos, Group A, II, pl. V, 27. SNG Paris 1127 var. With a splendid late Archaic-early Classical obverse. Reverse curiously double-struck, otherwise, about extremely fine.

From the "Collection sans Pareille" of Ancient Greek Fractions, and the collection of L. Mildenberg.

This coin, which is often termed a diobol and often misdated, comes from an issue that seems to be often found with double struck reverses. Exactly why this should be the case is unknown. For a well-struck example from the same dies, see Savoca 85, 2020, 425 ( but dated to the 4th century ); for another, also from the same dies, with the double-struck reverse, see Roma e78, 2020, 484.