541-542 AD., Justinian I., Constantinopolis mint, Æ Follis, Sear BC 163.

Justinian I., Constantinopolis mint, 5th officina,
Æ Follis / 40 Nummi (37-39 mm / 23.03 g), 541-542 AD.,
Obv.: DN IVSTINI - ANVS P P AYC , helmeted facing bust, holding globus cruciger and shield; cross to right.
Rev.: large M (value mark = 40 Nummi) between A / N / N / O and X / ч (dated regnal year 15, 538-9 AD.), cross above, officina letter Є beneath, CON in ex.
Sear BC 163 .