Justinian I AE 40 Nummi. Antioch, dated RY 13 = AD 539/40. (22.9 Gr. 41mm.)
Crowned and cuirassed bust facing, holding globus cruciger and shield; cross to right
Rev. Large M; ANNO to left, XIII (date) to right, cross above, Γ below, ΘVΠO in exergue.