Massalia. AR obol, ca 470-390 BC. 7 mm, 0.62 g. 

Helmeted male head left, helmeted decorated with a wheel of four spokes.
Wheel of four spokes.

Depeyrot, Marseille 1; Furtwängler, Massalia, em. XVI.

With permission of cngcoins.com, auction 380, Lot 5, Aug 2016.