Watch List notes:

ATTICA, Athens. Circa 475-465 BC. AR Tetradrachm (24.5mm, 17.14 g, 10h). Helmeted head of Athena right / Owl standing right, head facing, with spread tail feathers; olive sprig and crescent to left; all within incuse square. Starr Group IV, unlisted dies; HGC 4, 1595. Lightly toned, minor die shift and small mark on obverse. Near EF. Well centered.