Greek, Thrace, Mesembria

AE18, c.3rd-2nd century BC, diademed female head right, rev. Athena walking left, wielding spear and holding shield on right arm, BΡIANΩN/METAM, 5.07g, (Sear 1676, BMC 8-10, SNG Cop. 661, SNG Greece 227, SNG Black Sea 284-285, Moushmov 3978). Dark toning, fine