Caracalla AE28 Provincial
The following is what Curtis Clay had to say about these coins (I have another of these; however, I haven't gotten a good picture of it yet): "Yes, same dies both sides.
Provincial coins are in general rarer than Roman ones, one indication of which is the higher incidence of die links on them.
For example Blancon's List 41 of Lower Moesian provincials included two coins of Car. at Nicopolis under Tertullus, and both are same obv. die as your two coins, with different rev. types. A third coin in the list is also from the same obv. die, with rev. Acclamation in wreath, governor's name omitted.
In AMNG your rev. type is listed for Sept. Sev. under Tertullus, no. 1283, but not for Caracalla. "