Æ21 - Nero ADVENTVS AVGVSTI, C P

Patras held special status as a Roman colony — Colonia Aroe Patrensis — founded by Augustus, which gave it the rare provincial privilege of issuing its own bronze coinage. The ADVENTVS AVGVSTI type commemorates an imperial arrival, almost certainly tied to Nero's Greek tour of 66–67 AD, during which he competed in the games at Corinth and declared the freedom of Greece in a theatrical ceremony at the Isthmian Games. The colonial magistrate abbreviation C P anchors the issue firmly to Patras rather than the broader Achaean province.