ATTICA. Athens. Tetradrachm AR (Circa 454-404 BC). Obv: Helmeted head of Athena right, with frontal eye. Rev: AΘE. Owl standing right, head facing; olive sprig and crescent to left; all within incuse square. Kroll 8; HGC 4, 1597. 15,54 g. 24 mm.