THRACE. Mesambria. Diobol (Circa 4th century BC).
Obv: Facing Corinthian helmet.
Rev: META.
Four spoked wheel; small O below M in ethnic.
Topalov, Messambria 9; SNG BM Black Sea 268-71 var. (no O below M).
Condition: Extremely fine.
Weight: 1.19 g.
Diameter: 10 mm.