Kingdom of Thrace, AR tetradrachm, Lysimachus, aligned axis, mounted portrait-side out in heavy silver pendant with 14K gold prongs and shackle bail. 30.22 grams total. Diademed head of deified Alexander III right / Athena seated left, Nike in right hand, left arm resting on grounded shield. Well-centered, somewhat porous XF coin in sturdy, custom-made rounded silver bezel and three gold prongs and bail, effectively reversible due to aligned axis.
Estimate: $350 - $500