Very nice! Check this out, the coin image seems to match your image and what @trumpman said (king perseas) :) https://en.wikipedia.org/wiki/Perseus_of_Macedon

Tetradrachm of Perseus, minted between 179–172 BC at Pella or Amphipolis. The reverse depicts Zeus' eagle on a thunderbolt, with the legend ΒΑΣΙΛΕΩΣ ΠΕΡΣΕΩΣ ("King Perseus").[2]

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