Herakles - MARONEIA TETROBOL. Horse/Grapes $51 in April 2000 Contributed by Herakles Numismatics. Thrace - Maroneia. 298/7 - 286/5 B.C. AR Tetrobol. 2.891 grams. Obv. Forepart of prancing horse l.; in fields, r. and l., monogram. Rv. Linear square containing bunch of grapes; in field l., rhyton; in field, r., MA. S-G 273 ff. Very Fine.