THESSALY. Kierion. Circa 400-360 BC. Hemiobol (Silver, 9 mm, 0.43 g, 10 h). Laureate head of Zeus to left, with pointed, rather 'archaic' beard; behind head, thunderbolt. Rev. Κ-Ι Head of the nymph Arne to right, her hair bound in a sakkos. BCD Thessaly I, 1069 (this coin). HGC 4, 674 (this coin). Traité II, 4, 514 = HN² p. 293 . Extremely rare and very well preserved. Surfaces slightly porous. Nearly extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions and from the BCD Collection, Nomos 4, 10 May 2011, 1069.
This astonishingly rare coin has long been thought to bear a head of Poseidon because of the object on the obverse, previously identified as a trident. In fact, as can be seen on this better preserved example, what we have is a rather schematic thunderbolt.