Moesia Inferior, Nicopolis ad Istrum. Diadumenian. As Caesar, A.D. 217-218. AE 17 (17.3 mm, 2.26 g, 1 h). K M OΠΠEΛ ANTΩNINOC, bare-headed, draped bust of Diadumenian, Caesar right / NIKO / ΠOΛI / TΩN ΠP / O ICTP, ethnic in four lines within dotted border. Varbanov 3609; AMNG 1890; Moushmov 1343. VF, somewhat irregular flan losing some obverse legend; brown patina with green deposits in fields.