EUBOEA, Histiaia, 3rd to 2nd c. BCE, AR Tetrobol. 1.38g, 12mm.
Obv: Head of Maenad/Histiaia right, wearing vine-wreath.
Rev: IΣTIAI / EΩN, Nymph Histiaia seated on stern of galley holding stylis; wing on side of galley.
From the JB (Edmonton) collection.
The low weight suggest this may in fact be a diobol or triobol.