L SEPT SEV AVG IMP XI PART MAX, laureate head right / AEQVITATI AVGG, Aequitas standing left, holding scales and cornucopiae. 17mm, 3.12 grams. Limes version of RIC 122c, RSC 21 (the original minted 199 CE).
Very darkly toned, but appears to be silver and not a limes denarius.