Æ33 - Hadrian L ΕΝΝΕΑΚ·Δ

The regnal year notation ΕΝΝΕΑΚ·Δ places this piece in Hadrian's nineteenth year as calculated by the Alexandrian calendar, which ran from the accession of each emperor as synchronized to the Egyptian lunar-solar system rather than the Roman civic year. Alexandria's mint operated under direct imperial oversight and maintained its own dating conventions entirely independently of Rome — a bureaucratic holdover from Ptolemaic administrative practice that the Romans never bothered to dismantle.