Ancients
ATTICA. Athens. Ca. 454-404 BC. AR tetradrachm (17.14 gm). Helmeted head of Athena right / Owl standing right, head facing; olive spring and crescent behind; AΘE to right; all within incuse square. Kroll 8. SNG Copenhagen 31. NGC XF 4/5 - 2/5, countermark.
Estimate: 600-800 USD