Julia Mamaea, AE 25 of Deultum, Thrace.

IVLIA MAMAEA AVG, draped bust right, wearing stephane.
COL FL PAC DEVLT, Hermes standing left, holding purse and caduceus. 

Varbanov 2361 (this coin); Moushmov 3632; Jurukova 150; Sear GIC 3414.