ATTICA, Athens. 440-404 BC. AR Tetradrachm (17.17 gm; 25 mm). NGC-Choice AU. Helmeted head of Athena right / Owl standing right, head facing; olive sprig and crescent behind. SNG Cop. 31; Starr pl. XXII, 7. NGC-Choice AU (Strike 5/5; Surface 3/5). Certificate # 5873632-007. From the Parliament Collection.