Bronze AE3, 21mm, 3.78gm, issued AD 351/352 Rome mint.
Obv: MAG DECENTIVS NOB CAES, Bare-headed, draped bust facing right, B behind.
Rev: VICT DD NN AVG ET CAES (R in ex.), Two Victories facing each other holding shield between them.
References: Sear 18871, See RIC 212.