Thrace, Mesambria, circa 275/50-175 BC. AE (16mm, 2,66 g). Crested Corinthian helmet facing. Rev. Wheel with four spokes; M-E-T-A between. Topalov, Messambria 10; BM Black Sea 272-5; SNG Stancomb 225-8. Very fine with an awesome light green patina.