Solidus, 4.50g., Constantinople, 378-383 A.D., DN GRATIANVS PF AVG, diademed, draped and cuirassed bust right, rev. CONCORDIA AVGGG·, Constantinopolis enthroned, wearing high crown, holding sceptre and globe, resting right foot on prow, CONOB in exergue (RIC 43a; C.-), lustrous, extremely fine, very rare