Bronze AE3, 19mm, 2.93gm, issued AD 317-320 Nicomedia mint.
Obv: DN FL CL CONSTANTINVS NOB C, Laureate, draped bust left, holding sceptre and mappa.
Rev: PROVIDENTIAE CAESS, Jupiter, nude, chlamys draped across left shoulder, standing left, holding Victory on globe in right hand and leaning on sceptre with left hand.