Attica, Athens. AR Obol, 0.55 g. - 9.28 mm. Circa 454-404 BC. Obv.: Helmeted head of Athena right. Rev.: AΘE,Owl standing right, head facing; olive sprig and crescent to left; all within incuse square. Ref.: Kroll 13; HGC 4, 1665. Fine.