Constantius II, AE follis, Lyons. 18mm, 3.44 g.

Obv: CONSTANTIVS NOB CAES, Laureate, draped and cuirassed bust right.
Rev: PROVIDEN-TIAE CAESS, Campgate with six layers, two turrets, no doors, star above. 
Mintmark PLG.
NBD 52198; RIC VII Lyons 233 var (bust type)

(NBD=nummus-bibleii.com)
Contributed by Richard DeMarco of Carpe Diem Nvmismatics, Oct. 2016.