ATTICA, Athens. 440-404 BC. AR Tetradrachm (17.19 gm; 25 mm). NGC-MS (Strike 4/5; Surface 4/5). Certificate # 2086369-012. Helmeted head of Athena right / Owl standing right, head facing; olive sprig and crescent behind. SNG Cop. 31; Starr pl. XXII, 7. Sharply struck on a very nice flan. NGC-MS (Strike 4/5; Surface 4/5). Certificate # 2086369-012. Ex. Parliament Collection.