Æ12 - Trajan L ΙΓ

Year 13 of Trajan's reign fell during the height of his Dacian war expenditure, yet the Alexandrian mint continued its meticulous regnal-year dating system — a practice unique among Roman provincial mints that allows scholars to pin these small bronzes to a single twelve-month window with a precision impossible for most imperial coinage. The mint at Alexandria operated under the prefect of Egypt, not the emperor directly, making its output technically a local civic issue rather than an imperial one.