Watch List notes:

BITHYNIA. Kalchedon. Circa 387/6-340 BC. Tetradrachm (Silver, 22.5 mm, 15.20 g), Rhodian standard. KAΛX Bull standing left above grain ear; to left, B. Rev. Stippled quadripartite incuse square. SNG Black Sea 97-8. SNG von Aulock 486. Scratch on the obverse and light die-rust, otherwise, very fine.