Magnesia ad Meandrum, Ionia. AR Obol, 0.67g; 9mm, 350-190 BC.

Obv: Head of Athena right wearing crested Athenian helmet, bound 
with olive wreath
Rev: M-A, to left and right of ornate trident head within 
circular Meander pattern. 

SNG von Aulock 2032; BMC 15.

With permission of Roma Numismatics, January, 2010