Watch List notes:

ATTICA, Athens. Circa 485/480 BC. AR Tetradrachm (21mm, 15.17 g, 10h). Helmeted head of Athena right of archaic style / Owl standing right, head facing; olive sprig of three leaves behind; all within incuse square. Seltman Group C; SNG Copenhagen 15. Fine, porous, multiple test cuts.