Watch List notes:

ATTICA, Athens. Circa 500/490-485/0 BC. AR Tetradrachm (21.5mm, 17.50 g, 11h). Helmeted head of Athena right / Owl standing right, head facing; olive spray behind; all within incuse square. Seltman Group M; Asyut Group IVe; HGC 4, 1590. VF, struck with worn reverse die. Well centered obverse.