Watch List notes:

Thrace, Kallatis. 3rd century - ca. 281 B.C. AR fourrée octobol (17.5 mm, 4.54 g, 8 h). Herakles wearing lion's skin right / KAΛΛATI, grain ear over club, bow in quiver below. cf. SNG Cop 176; cf. BMC 1. VF. 

The fourrée core is clear above the forehead on the obverse and below the bow on the reverse.