Constantine II AE follis of Nicomedia. AD 337-340. 19 mm, 3.26 g.

CONSTANTINVS IVN NOB C, laureate, draped and cuirassed bust right.
PROVIDEN-TIAE CAES dot, campgate with five layers, two  turrets, star above. 

Mintmark SMNS. 
RIC VII Nicomedia 157; Sear 17249.

With permission of Zach Beasley, beastcoins.com

_nicomedia_RIC_VII_157_S