Year L Α (year 1) of Diocletian's reign at Alexandria corresponds to 284–285 AD, yet this piece dates to 292–293 — year 9, not year 1. The notation likely reflects a reset of the regnal count following Diocletian's currency reform of 293/294, when he restructured the tetrachic monetary system and the Alexandrian mint recalibrated its dating conventions accordingly. Egypt's mint had operated under a separate regnal-year reckoning since Ptolemaic times, a bureaucratic tradition Rome never fully suppressed.
Year L Α (year 1) of Diocletian's reign at Alexandria corresponds to 284–285 AD, yet this piece dates to 292–293 — year 9, not year 1. The notation likely reflects a reset of the regnal count following Diocletian's currency reform of 293/294, when he restructured the tetrachic monetary system and the Alexandrian mint recalibrated its dating conventions accordingly. Egypt's mint had operated under a separate regnal-year reckoning since Ptolemaic times, a bureaucratic tradition Rome never fully suppressed.