Attica, Athens Tetradrachm after 449 BC. Choice

Attica, Athens Tetradrachm after 449 BC, 23 mm. 17.2 gm. Obv: Head of Athena r., wearing crested Attic helmet decorated with three olive leaves and a spiral palmette. Rev: Owl standing r., head facing; olive sprig and crescent to left. All within incuse square. Kroll 8. SNG Copenhagen 31. Svoronos pl. 11. Choice.