539-540 AD., Justinian I., Nicomedia mint, Follis, Sear BC 201.

Justinian I., Nicomedia mint, 1st officina,
Æ Follis / 40 Nummi (39-41 mm / 23.01 g), 539-540 AD.,
Obv.: DN IVSTINI - ANVS P P AVC , diademed, helmeted, and cuirassed facing bust, holding globus cruciger and shield; cross to right.
Rev.: large M (value mark = 40 Nummi) between A / N / N / O and X / II / I (dated regnal year 13, 539-40 AD.), cross above, officina letter A beneath, NIK in ex.
Sear BC 201 ; DOC 117a .