Hmm, that's challenging. Can you tell us the size and weight? It is a Roman provincial. I think I see "...ΠΑΛ..." on the obverse. If so, it could be Julia Paula. The coin's condition makes it a bit difficult to even determine the obverse figure's gender but I think the drapery looks more like a female than male. The reverse might be Salus or Hygieia with snake and patera. The reverse legend will spell the name of the issuing location. There is no single source for researching Provincials-- you have to dig around in a variety of books, catalogs, and databases. Wildwinds shows a Julia Paula/Hygieia from Philippopolis. I don't know if the legend on your could fit. For that Philippopolis coin, the legends should be: Obv: IOVΛ KOPN ΠAVΛA CEB Rev: ΜΗΤPOΠOEΩC ΦIΛIΠΠΟΠΟΛΕΩΨ ΝΕΩΚΟPΟV Spacing and word breaks can vary.
Like this from wildwinds: Macrinus AE27 of Nikopolis ad Istrum. Legate Marcus Claudius Agrippa. AV K OPPEL CEVH MAKPINOC, bust in breastplate with gorgoneion, laureate right, Aegis with snakes on left shoulder / YP AGRIPPA NIKOPOLITWN PPOC IC / TPW, Hygieia, draped, with drapery over left arm, standing right holding patera & feeding snake held in right arm. AMNG 1694, BMC 41.
I think @ancientone has nailed it Here's a similar example from CNG's archives (easier to link since you can't paste images directly from Wildwinds)
I rather like it---it has 'character' and certainly looks ancient!!! And it's always cool to definitively identify them.
