Patrae under the Achaean League. Achaean League Hemidrachm, ex BCD; Patrae under the Achaean League; 167-146 BC, Hemidrachm, 2.20g. Benner-19, BCD-501.5. Obv: Head of Zeus r. Rx: Large X, trident in bottom quadrant; all within laurel wreath.Toned. MS