330-331 AD., Constantius II., as Caesar, Rome mint, Follis, RIC 337.

Constantius II., as Caesar (317-337 AD.), mint of Rome, 3rd officina,
Æ3 / Follis (16-17 mm / 2.10 g), 330-331 AD.,
Obv.: FL IVL CONSTANTIVS NOB C , laureate, draped, cuirassed bust r.
Rev.: GLOR-IA EXERC-ITVS / RBT , two soldiers, facing one another, holding reversed spears and resting hands on shields, between them two standards.
RIC VII, page 336, no. 337.