Justinian I., Nicomedia mint, 1st officina,
Æ Follis / 40 Nummi (33-34 mm / 18,30 g), 543-544 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 / ч / II (dated regnal year 17, 543-544 AD.), cross above, officina letter A beneath, NIKO in ex.
Sear BC 201 ; DOC 117a ; R. 591 .