Ancients
BITHYNIA. Calchedon. Ca. 387-340 BC. AR tetradrachm or stater (15.19 gm). NGC XF 3/5 - 4/5. Bull standing left on grain ear / Quadripartite incuse square, the interior surfaces dotted. SNG BM Black Sea 93-9. SNG von Aulock 486 variant (monogram). Rare.
Estimate: 400-500 USD