Watch List notes:

ATTICA, Athens. 440-404 BC. Silver Tetradrachm (17.28 gm; 26mm x 23mm). Helmeted head of Athena right / Owl standing right, head facing; olive sprig and crescent behind. SNG Cop. 31; Starr pl. XXII, 7. Sharply struck on an excellent metal. Full crest. Minor natural deposit on the reverse (can be easily cleaned). Choice FDC. Lustrous.