Tetradrachm - Mithridates VI Eupator Pergamon; ϹΣ H

Mithridates VI struck this issue at Pergamon — a city his forces seized during the First Mithridatic War — using the civic infrastructure of a mint that had, until recently, belonged to Rome's ally Attalus III. The regnal year ϹΣ H (year 206, Pontic era) places production in 91 BC, the eve of his full invasion of Roman Asia, when the king was still consolidating the ideological machinery of his campaign as carefully as its logistics.

De Callataÿ's die studies demonstrate that Mithridates' silver output was extraordinarily prolific relative to other Hellenistic monarchs, making individual die-linkage the only reliable tool for sequencing issues within a given year.