Herakles - Philip I & Reskuporis IV. Bosporus Roman Empire. Philip I & King Rheskuporis IV. A.D. 244-249. Billon Tetradrachm. 7.50 grams. Struck Year 548 = A.D. 251/2 in Bosporus. Obverse: Laureate head of King Rheskuporis IV r. Reverse: Veiled head of Philip I r. Very Fine. Bosphorus. AE19. Philip I/Rhescuporis IV. billon. Grade:VF '251/2 A.D.: The Greek letter date is 548 which translates to A.D. 251-252. Herakles Numismatics, Inc. ex Richard Giedroyc art. H139