Watch List notes:

ATTICA, Athens. 440-404 BC. Silver Tetradrachm (17.23 gm; 23 mm). Helmeted head of Athena right / Owl standing right, head facing; olive sprig and crescent behind. SNG Cop. 31; Starr pl. XXII, 7. Nice style. Sharply struck in high relief. Some natural deposit residues on the obverse field. Choice FDC. Lustrous.