5 Nummi - Justin II Nicomedia

Justin II inherited the throne from Justinian I in 565 and almost immediately abandoned his predecessor's ruinous policy of buying peace with the Avars and Sassanids — a reversal that plunged the empire into costly warfare on multiple fronts. The Nicomedia mint, designated by the Ѧ officina marks in this series, was one of the smaller provincial operations serving the eastern provinces during this reign.

Justin suffered a mental breakdown, reportedly severe and public, beginning around 574, leading to the co-elevation of Tiberius Constantine as Caesar to handle actual governance. Coins struck after that point were issued nominally under Justin's authority while power had effectively passed.