Attica, Athens, AR tetradrachm "owl," 449-413 BC, mounted owl-side out in 14K gold pendant with fixed bail. 24.56 grams total. Helmeted head of Athena right, with frontal eye / Owl standing right, head facing; olive sprig and crescent to left; all within incuse square. Heavy-gold custom setting with flat-sided bezel surrounding XF silvery coin.
Estimate: $800 - $1200