KINGS OF BITHYNIA. Ziailas, circa 250-230 BC. (Bronze, 17.5 mm, 4.91 g, 12 h). Diademed head of Ziailas to right. Rev. BAΣIΛEΩΣ ZIAHΛA around trophy. EHC 416. Reinach, "Essai sur la numismatique des rois de Bithynie," RN 1887, pl. V, 4. SNG von Aulock 243. Extremely rare. Fault on the obverse, otherwise, very fine.
King Ziailas of Bithynia is only known from this limited series of coins.