Bezel : sterling silver 925 
Leather chain included with a pendant coin . 
SYRIA, Seleucis and Pieria. Antioch. Philip II, 247-249.Tetradrachm (Billon, 28 mm, 11.81 g, 7 h), 248-249. ΑΥΤΟΚ Κ Μ ΙΟΥΛΙ ΦΙΛΙΠΠΟC CЄΒ Laureate, draped and cuirassed bust of Philip II to right, seen from behind. Rev.ΔΗΜΑΡX ЄΞOYCIAC ΥΠΑ ΤO Δ / ANTIOXIA / S C Eagle with spread wings standing right, holding wreath in beak. McAlee 1042. Prieur 474. RPC VIII online ID 29020. Minor roughness and with a small flan fault on the obverse, otherwise,extremely fine.
From the Sam 'Duck' Reed Collection, privately acquired in the late 1980s or early 1990s.