Constantine II, AE follis of Constantinople, AD 440-333. 

CONSTANTINVS IVN NOB C, laureate, cuirassed bust right.
GLORIA EXERCITVS, two soldiers , each with spear and shield, 
standing facing each other, two standards between them. 

Mintmark CONS Theta dot. 

RIC VII Constantinople 74; Sear 17339.

Contributed by Romae Aeternae Numismatics, June 2015.