Watch List notes:

PHILISTIA (PALESTINE). Askalon. mid 5th century-333 BC. Obol (Silver, 8 mm, 0.54 g, 10 h). Helmeted head of Athena to right. Rev. Retrograde nun and aleph; in lower right field Θ E Owl standing to right, head facing; olive sprig and crescent behind. ARAM 8, p. 63, 7. Gitler & Tal III.15O. Very rare. Slightly off-center, otherwise, good fine.
From an American collection.