Constantine II. AE17. Arles. 330-335 AD. 

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

Mintmark SCONST. 

RIC VII Arles 365. Very rare (R4).

With permission of Roma Numismatics, Feb, 2010