Constantine II, AE follis, Lyons. AD 337-348. 

CONSTANTINVS IVN NOB C, laureate, cuirassed bust right.
GLOR-IA EXERC-ITVS, two soldiers holding spears and shields 
with one standard between them.

Mintmark: crescent PLG

RIC VII Lyons 276; Sear 17346.
Rated R4.

With permission of cgb.fr, Feb. 2013.