CNG 91, Lot: 219. Estimate $500. Sold for $320. This amount does not include the buyer’s fee.

BITHYNIA, Kalchedon. Circa 260-220 BC. AR Tetradrachm (29mm, 16.77 g, 12h). In the name and types of Alexander III of Macedon. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; in left field, monogram above K; Θ below throne, grain ear in exergue. Price 934 (Kallatis). Good VF, minor double strike on reverse.

See U. Wartenberg & J.H. Kagan, “Some Comments on a New Hoard from the Balkan Sea” in Travaux Le Rider, pp. 402–5, for the reattribution of this, and many of the other issues Price assigned to Kallatis, to Kalchedon.