Constantine II, AE follis, Nicomedia.

CONSTANTINVS IVN NOB C, laureate, draped, cuirassed bust right.
PROVIDEN-TIAE CAES dot, campgate, 8 layers, two turrets, star
above.
Mintmark MN Gamma

RIC VII Nicomedia 127, rated R1

From Dane's collection, Sept. 2012.