Æ18 - Vespasian ΚΩΙΩΝ

Kos enjoyed a privileged status under the Julio-Claudians — Claudius had formally exempted the island from taxation, a concession tied to the influence of his personal physician Xenophon, a native of Kos. Whether that exemption held under Vespasian, who aggressively rationalised provincial finances after the civil wars of 69, is unclear. The city's decision to strike civic bronze in his name suggests at minimum a functional relationship with the new Flavian administration.

Cos minted sporadically under the empire, and the conventus of Halicarnassus was among the less prolific issuing jurisdictions in Asia.