Bronze, 1.07 grams, 16.51 mm. 336-337 AD. Constantinople mint. Obverse: HANNIBALLIANO REGI, draped and cuirassed bust right. SECVRITAS PVBLICA, the river Euphrates seated on the ground right, leaning on sceptre, an urn at his side, a reed behind. RIC 147; Sear 16905. Rare. Good fine.