I think it is Roman, but don't know when or who its about. I am having a hard time reading the inscription, too.
Purely a guess from the legends would be Antoninus Pius (and no time to look.) This may be the obverse legend. IMP CAES T AEL HADR ANTONINVS AVG PIVS P P,
This is a modern cast medallion not really copying any real Roman coin but trying to be from the 2nd century but more likely from the 20th.
first looks seleucid, other is roman, constantius II i think its this: Constantius II AE3. D N CONSTAN-TIVS P F AVG, pearl-diadem, draped & cuirassed bust left, globe in hand / FEL TEMP-REPARATIO, emperor bare headed and in military dress standing, holding standard with chi-rho on banner in his right hand, resting left hand on shield, two bound captives wearing Phrygian helmets kneeling, leaning to the left before him, star in left field, cant make out what is ex. smnk?
ex. = Exergue The space at the bottom of a coin on the reverse side smnk for the mint mark basicaly. but i think I'm wrong on smnk smn would be Nicomedia heres a link you may want to look at http://www.wildwinds.com/coins/ric/constantius_II/i.html
What might the other mint marks be? It is easier to try to figure out which if I know what they might be.
Yes, the ex. does look like SMNK. Does the K mean anything different than the S? Anything more about the other one?
The photo could be more clear but I believe it is SMNgamma. The last letter indicates a workshop within the mint of Nicomedia. They used Greek numerals for the six shops A, B, gamma, delta, E and S.
The coin is Tarsos in Cilicia showing the Pyre of Sandan and a head of Tyche with legend TAPCEON Sear 5672 possibly 1st century BC. A really nice one is pictured in Sear, Greek Coins and their Values. Sear's 14 pound catalog price suggests it is not rare but it was new to me.
