Æ33 - Antoninus Pius L ΙΗ

Year 18 of Antoninus Pius's reign — the regnal year encoded in that L ΙΗ — places this squarely in one of the most administratively stable decades Roman Egypt ever experienced. The prefecture under Pius was notable for its relative absence of crisis: no major revolts, no currency collapses, none of the Jewish uprisings that had convulsed the province under Hadrian. Alexandrian bronzes from this period circulated as genuine fiduciary coinage within Egypt's closed monetary system, legally prohibited from export and exchanged at the border.

The sheer volume of types produced in regnal year 18 is remarkable — the Alexandria mint was prolific even by its own standards that year.