Tetrassarion - Caracalla ANTWNIANH CEOVHP ADR MHT TAPCOV MKA ΓB

Tarsus held the title of "metropolis" of the three eparchies of Cilicia — a distinction it guarded jealously and advertised on its civic coinage with the abbreviation MKA (Metropolis of the Koinon of Asia) alongside the ΓB mark denoting its rank among the three provinces. Caracalla elevated Tarsus's civic status further during his 214–217 eastern campaign, and the city responded with a surge of ambitious bronze issues in his honor.

The ΓB on this piece indicates a denomination within the local tariff system, not a mint sequence — a distinction that confused early cataloguers and accounts for the varied reference attributions across Levante, BMC, and von Aulock.