AR25 - Otho ΕΙΡΗΝΗ

Otho's reign lasted 95 days before his suicide following defeat at the First Battle of Bedriacum, making any coin issued in his name from any mint extraordinarily short-lived by production standards. Alexandria was still operating under Neronian administrative momentum when news of Galba's assassination arrived, and the city's mint had precious little time to produce a meaningful volume before Vitellius was already emperor.

The Dattari 357 attribution places this firmly among the rarest provincials by reign-length, a category where even modest surviving populations represent a substantial fraction of total output.