CNG 108, Lot: 161. Estimate $300. Sold for $380. This amount does not include the buyer’s fee.

BITHYNIA, Kalchedon. Circa 260-220 BC. AR Tetradrachm (29mm, 16.79 g, 12h). In the name and types of Alexander III of Macedon. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; ΠA monogram in left field, grain ear in exergue. Price 926 (Kallatis); Türkoğlu –; HGC 7, 521. Good VF, toned, a couple minor cuts on obverse.

From the Collection of José Miguel Márquez del Prado. Ex Áureo & Calicó 295 (5 July 2017), lot 23.

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.