Bithynia, Kalchedon. Silver Stater (15.19 g), ca. 367/6-340 BC. Bull standing left on grain ear right; in left field, monogram. Reverse: Quadripartite incuse square with stippled surface. RG 14; cf. SNG BM 93-4 (monogram). Lightly toned. NGC grade XF; Strike: 3/5, Surface: 4/5. Estimate Value $350 - 400