Watch List notes:

IONIA. Magnesia ad Maeandrum. Circa 400-350 BC. Obol (Silver, 10 mm, 0.90 g, 6 h). Head of Athena to right, wearing crested Attic helmet adorned with an olive wreath. Rev. Μ - Α Ornamental trident head; all within circular maeander . SNG Copenhagen 810. SNG Kayhan 404. SNG von Aulock 2032. Toned. Very fine.
From the "Collection sans Pareille" of Ancient Greek Fractions.