Herakles- Parium, MYSIA Hemidrachm GORGONEION Mysia - Parium. c. 350 - 300 B.C. AR Hemidrachm. 2.30 grams. Obverse: Gorgoneion. Reverse: Bull standing l., looking back; above, monogram; below, P I and vine-leaf. BMC 14. Very Fine. Herakles Numismatics, Inc.