Tetradrachm - Diocletianus Nike

Diocletian's Egyptian tetradrachms mark the last gasp of Alexandria's centuries-old tradition of striking a distinct fiduciary coinage — a system that had kept Egypt monetarily isolated from the rest of the Roman Empire since Augustus deliberately sealed it off. This issue falls within the brief window before the reform of 296 AD, when Diocletian forcibly ended the Alexandrian mint's separate currency system and integrated Egypt into the imperial bronze coinage, effectively terminating a monetary tradition nearly 300 years old.

Milne 4878 is well-documented within the regnal year sequence for this reign.