GIC —: ΙΟΑ or POA or TOA or {ΤΡ}ΟΑ ?
Countermark: ΙΟΑ or POA or TOA or {ΤΡ}ΟΑ ? – as defined in C. Howgego, Greek Imperial Countermarks. Studies in the Provincial Coinage of the Roman Empire (London, 1985): no. —