Herakles - ACANTHUS. Athena In Crested Helmet [HeraklesNumismatics, Inc.] Macedonia Acanthus 525-470 B.C. AR Diobol. 1.207 grams. Obverse: Head of Athena r., wearing crested Athenian helmet. Reverse: Shallow quadripartite incuse square. Reference: SNG ANS 24. Very Fine Herakles Numismatics, Inc.