Tetrobol

Olynthos was the dominant city of the Chalkidian League, a federalized Greek state in northern Macedonia that managed to resist both Athenian and Macedonian pressure for decades. This tetrobol dates to the period before Philip II's siege of 348 BC, which ended the city's existence entirely — he razed it to the ground and sold its population into slavery, erasing one of the most sophisticated political experiments in northern Greece.

The Chalkidian League's coinage was federally issued, which was unusual for Greek poleis of the period.