Ex BCD coll.
ACHAEA, Thessalian League, AE17-19 (19mm, 7.04g, 7h), first emission.
ΔΟΜΙΤΙΑΝΟΝ ΚΑΙΣΑΡΑ ΘΕΣΣΑΛΟΙ counter-clockwise from lower right, head of Domitian laureate right; ΔΟΜΙΤΙΑΝ ΣΕΒΑΣΣTHN counter-clockwise from lower right, draped bust of Domitia right.
RPC 278 .
Ex CNG, ex BCD coll., ex Thessaly (Nov. 97, SFr 50, from original BCD tag).
I am not entirely satisfied with this identification; it could also be RPC 277. I assigned it RPC 278 since that is the more common variety--don't think zebras when you hear hoofbeats. However if I ever come across a matching die I will make the definitive determination at that time. BCD doesn't record a weight for this coin.