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.

With permission of Baldwin's Auctions,  The Bishop’s Wood Hoard.
Auction 65, Lot 1156, May 2010.