Caracalla, AE28 of Nikopolis ad Istrum. 4 Assaria. Magistrate Flavius Ulpianus. AV K M AVP ANTWNINOC, laureate head right. V FL OVLPIAN NIKOPOLI PROC I, two captives with hands tied behind their backs, seated at the base of a trophy. Varbanov 3136; AMNG 1582.