Hephaistia on Lemnos, Thrace, AE13. ca 386-276 BC). 2.00 g. 

Obv: Helmeted head of Athena right.
Rev: HFAI to right of owl standing facing, upright palm
branch in left field.

Mionnet Supp. II, 1.

With permission of Numismatik Naumann, Jan 2016.