Bithynia, Kalchedon AR Siglos. Circa 340-320 BC. Rhodian standard. Bull standing to left on grain ear; KAΛX above / Quadripartite incuse square in mill-sail pattern. SNG BM Black Sea 112; SNG Copenhagen 348; HGC 7, 517. 5.29g, 18mm.
Very Fine.
From a private European collection;
Ex Numismatik Naumann, Auction 80, 4 August 2019, lot 123.