BITHYNIA. Kalchedon. Circa 367/6-340 BC. Tetradrachm (Silver, 23 mm, 14.69 g, 3 h), Rhodian standard. KAΛX Bull standing left above grain ear; to left, B. Rev. Stippled quadripartite incuse square. SNG Black Sea 98. SNG von Aulock 486. Toned. Very fine.
From the Trausnitz Collection, ex Meister & Sonntag 5, 21 September 2007, 9 and Künker 97, 7 March 2005, 656.