Constantine II AE follis, Antioch. AD 330 or 334. 

CONSTANTINVS IVN NOB C, laureate, draped and cuirassed bust, left.
PROVIDEN-TIAE CAESS, campgate, 2 turrets, 9 layers, star 
above, dot in doorway.

Mintmark SMANTI.

RIC VII Antioch 73. 
Rated R3

With permission of cgb.fr. Mail Bid Sale 41. lot 1347, Nov. 2009.