Yes, clearly Sept.
Severus.
Rev. shows
Dionysus, emptying
cup to
panther seated at
his feet, and probably holding
thyrsus in lowered l. hand.
Only WN of the
ethnic survives, but the size and spacing of the letters show that it was a short word, probably no more than seven letters.
If the coin was found in
Bulgaria,
Serdica would be a likely candidate, with
ethnic [CEP--D]WN.
The coin would then be a variant of
Ruzicka, Die Muenzen von
Serdica, no. 48, also an AE 19 of Sept.
Sev., but with a variant
type of
Dionysus (no
panther, l. hand holding
thyrsus is raised), and the longer
ethnic OVLPIAC CEPDIKHC.
The only way to finalize the
attribution would be to find another specimen of the same coin with legible
ethnic, or a coin with a different
reverse type with legible
ethnic but struck from the same
obv. die.