Size:  26mm  Weight:  15.3 grams
Obverse: Diademed head right, fillet border
Reverse: ΒΑΣΙΛΕΥΣ / ΦΙΛΙΠΠΟΥΕΠΙΦΑΝΟΥΣ / ΦΙΛΑâ��ΕΛΦΟΥ, Zeus enthroned left, Nike offering wreath inright, long scepter vertical in left, Φ/Α left, small P below throne,fillet border

Philip I Philadelphus was the fourth son of Antiochus VIII Grypus. He took the diadem in 95 B.C. together with his older (probably twin) brother Antiochus XI Ephiphanes, after the eldest son Seleucus VI Epiphanes was killed by their cousin Antiochus X Eusebes. He established himself in Antiochia and survived attacks from younger brother Demetrius III Eucaerus. His rule ended in 83 B.C. when Tigranes conquered Syria, or sometime before. He disappears from history at that point, but later coins bearing his portrait were issued by the Roman authorities.