Æ33 - Antoninus Pius L ΤΕΤΑΡΤΟΥ

Year 4 of Antoninus Pius corresponds to the Alexandrian regnal year ΤΕΤΑΡΤΟΥ — the fourth — running from late August 140 to late August 141. Alexandria's municipal bronze coinage operated on this Egyptian calendar system throughout the imperial period, creating a parallel dating structure that occasionally frustrates attribution when the obverse titulature is worn. The Alexandrian mint was among the most prolific provincial operations in the empire, issuing bronze on a scale that served the enormous commercial demands of Egypt's grain economy.