ANCIENT GREECE - GREEK Bithynia, Chalcedon. Drachma ND (357-340 BC), Chalcedon. Av. ΚΑΛX. Bull standing left; in front, a caduceus and control mark (ΔA). Rv. Quadripartite hollow square with dotted lines. HGC 7, 511 - SNG von Aulock 487-488; Silver - 3.81 g - 14.5 mm - 12 h With certificate no. 6674 from Forum Antiquitarium, Pierre Hubert, Lausanne, dated 27 September 1975. UCS: coming soon. The strike is barely trefoiled on the right but quite complete. With a grey patina. Rare. Almost Superb.