Tetradrachm In the name of Alexander III, Odessos, ΚΟΙ

Odessos, on the Black Sea coast of Thrace, was one of several autonomous civic mints that struck posthumous Alexandrine tetradrachms under their own civic authority rather than any Macedonian successor king. The magistrate's control mark encoded in the ethnic abbreviation ΚΟΙ allowed the city to participate in the dominant trade coinage of the Hellenistic world while signaling local accountability. Price 1162 places this issue within the third century, when Odessos was navigating pressure from both Lysimachian successor politics and the expanding influence of Celtic groups pushing into the Balkans.