Herakles - Mysia Hemidrachm. GORGON. BULL. Mysia - Parium. c. 400 - 300 B.C. AR Hemidrachm. 2.30 grams. Obverse: Gorgoneion. Reverse: Bull standing l., looking back; above, monogram; beneath, P I and control-mark. BMC 97, 36. Good Very Fine with ancient die-cut to test the quality of the silver. Herakles Numismatics, Inc.