Æ27 - Severus Alexander ΤΡΑΠΕΖΟΥΝΤΙωΝ (or ΤΡΑΠΕΖΟΥΝΤΙωΝ retrograde Ζ) Ε ΡΞΓ

Trapezus, the Black Sea port that would later become Trebizond, struck provincial bronzes on a local era reckoning — the "Ε ΡΞΓ" denotes year 163 of the Pontic era, anchored to 64/63 BC when Pompey reorganized the region after defeating Mithridates VI. The retrograde Ζ variant in the ethnic legend is a known die peculiarity of this issue, not a restrike or error in the modern sense, but a consequence of the engraver cutting the punch letter-by-letter without a guiding template.