Æ34 - Antoninus Pius L ΕΝΔΕΚΑΤΟΥ

The regnal year designation L ΕΝΔΕΚΑΤΟΥ — Year 11 of Antoninus Pius — anchors this piece to 147/148 AD, a period when Alexandria's mint was operating at considerable volume to serve Egypt's monetized economy. Egyptian provincial bronze ran on a closed currency system: coins imported from elsewhere were officially demonetized, and locally struck bronze circulated internally without legal-tender status beyond the province's borders.

The Alexandrian mint dated its output by Egyptian regnal year rather than Roman consular year, a bureaucratic holdover from Ptolemaic practice that Rome never bothered to dismantle.