Thrace, Serdica. Caracalla. A.D. 198-217. AE 29 (29.30 mm, 16.88 g, 7 h). A.D. 200. AVT. K. M. AVP. CEV. ANTΩNEINOC, laureate and cuirassed bust right / OVΛΠΙΑC CEPΔIKHC, coiled serpent with head to right. H&J 12.18.22.2; BMC 23. F/aVF, grainy surfaces.