Center is an anonymous Imperial quadrans of the 2nd century, I believe, Juno and peacock. The rest are Provincials. Lower right is Diadumenian of Marcianopolis. Upper left is Caracalla from Nicopolis with a super fine strike of Ares on the reverse. Lower left is Septimius from Marcianopolis with a weak eagle. Upper right is more of a guess but I'll try Commodus from Nicopolis with Castor or some other horseman. IMHO the Ares is worth as much as the other four combined.