GIC 500: lit torch between ΠƐ - Τ, or ΠΔΤ (once) around
Countermark: lit torch between ΠƐ - Τ, or ΠΔΤ (once) around – as defined in C. Howgego, Greek Imperial Countermarks. Studies in the Provincial Coinage of the Roman Empire (London, 1985): no. 500