Theodosius I, 379-395 AD, AV Solidus, Constantinople Mint. 

DN THEODOSIVS PF AVG, pearl-diademed, draped and cuirassed bust right.
CONCORDIA AVGGGB, Constantinopolis seated facing on throne, looking right, holding sceptre and shield inscribed VOT V MVL X. 

Mintmark CONOB. RIC IX 70a.