Herakles - MARONEIA TRIOBOL. Grapes On Vine. $22.05 in July 2002. Contributed by Herakles Numismatics, Inc. Thrace Maroneia 398/7 - 386/5 B.C. AR Triobol. 2.588 grams. Obverse: Forepart of horse prancing l. Reverse: Dotted square containing vine-branch and grapes. Reference: S. G. Period VII. Fine/Very Fine+