Bithynia, Kalchedon. Circa 387/6-340 BC. AR Tetradrachm or 
stater. 23 mm, 14.98 g.

KALX, bull standing left on corn-ear, DA monogram in left field.
Stippled, quadripartite ncuse punch.

SNG BMC Black Sea 93-94; RecGen 14.

With permission of Tkalec AG, May 2011.