Attica, Athens. Tetradrachm; Attica, Athens; 393-355 BC, Tetradrachm, 17.19g. Kroll-15, Svoronos pl. 20 passim. Obv: Head of Athena to right, wearing crested Attic helmet decorated with three olive leaves and palmette. Rx: AΘ[E] Owl standing right, head facing; to left, olive sprig and crescent; all within incuse square.This coin represents exceptional quality for this type, which is normally struck on a odd-shaped flan. However, in this case, the centering of the images is virtually perfect. EF