Attica, Athens. Silver Tetradrachm (17.18 g), ca. 454-404 BC. Helmeted head of Athena right, frontal eye. Reverse: AΘE, owl standing right, head facing; above to left, olive-spray with berry and crescent; all within incuse square. Kroll 8; Svoronos pl. 14; SNG Copenhagen 31-40. Traces of luster still evident. Well centered and untoned. NGC grade Ch XF; Strike: 5/5, Surface: 3/5. Estimated Value $500 - UP