AR21 - Claudius II L Γ

Claudius II died of plague in August 270 — one of the few third-century emperors not killed by his own troops — and Alexandria continued striking in his name into regnal year four (L Γ), likely before news of his death had fully reorganized the mint's production schedule. The Egyptian provincial mint operated on a Diocletian-era billon that was already debased far below its nominal silver content, a condition that had been deteriorating steadily since the Antonine period.

Dattari 5415 places this among the better-documented Alexandria issues, though die alignment and flan quality vary considerably across surviving specimens.