Constantine II. Rome.  330-335 AD.

CONSTANTINVS IVN NOB C, laureate, cuirassed bust right
GLOR-IA EXERC-ITVS, two soldiers holding spears and 
shields with two standards between them. O on banners.
Mintmark: RFT

RIC VII Rome 328, rated R5.

Submitted by Mitch of Treverus Coins, April 2000.