TROAS. Alexandria. Caracalla (198-217). Ae As. (24mm, 6.3 g)
Obv: M AVR ANTONINVS PIVS AV.
Laureate, draped and cuirassed bust right.
Rev: COL AV / TROAD.
Horse grazing right; behind, herdsman Orodes right, holding pedum over shoulder; overhanging tree to left.