ATTICA, Athens. Circa 454-404 BC. AR Tetradrachm (22mm, 16.83 g, 1h). Helmeted head of Athena right, with frontal eye / Owl standing right, head facing, closed tail feathers; olive spray and crescent to left; all within incuse square. Kroll 8; HGC 4, 1597. In NGC encapsulation 6154720-003, graded Ch XF, Strike: 5/5, Surface: 4/5.