Hemiobol

Thasos built its archaic and classical wealth almost entirely on silver mines in the Thracian mainland opposite the island, and on a wine trade protected by what ancient sources describe as a deliberate monopoly — foreign wines were banned from Thracian coastal markets the Thasians controlled. The hemiobol circulated at the extreme lower end of that economy, likely used in daily market transactions that larger denominations couldn't serve.

The Rosen collection reference places this among a well-documented hoard corpus, but individual specimens of this fractional denomination remain difficult to attribute precisely within the 52-year window — the types changed little.