AR22 - Antoninus Pius L ΙΗ

Year 18 of Antoninus Pius's reign fell squarely within one of the most administratively stable periods Roman Egypt had seen in generations — no revolt, no flood crisis, no currency reform. The Alexandria mint continued producing billon tetradrachms at a silver content already badly debased from earlier imperial standards, a slide that had been underway since Nero's reduction of the provincial coinage in the 60s AD.

Milne 2295 is well-attested across major collections, which reflects consistent output rather than any particular scarcity or abundance for this regnal year.