Gratian, AE20, Arles.

Obv: DN GRATIANVS AVGG AVG, pearl-diademed, draped and 
cuirassed bust right.
Rev: GLORIA NO-VI SAECVLI, Emperor standing facing, head 
left, holding labarum in right hand and resting left hand 
on shield.
OF-II across fields.
Mintmark CON.

RIC IX Arles, 15 type xii(b), rated common.

From Dane's collection, Nov. 2010.