Hostilian AR antoninianus AD 251. 23mm. 

C OVAL OSTIL MES COVINTUS AVG, radiate, draped bust right
2 dots beneath bust.
AEQVITAS AVG, Aequitas standing left, holding scales and
cornucopiae. 

RIC 202c; RSC 3a-b var (dots)

Ex Hauck & Aufhäuser - Auction 19, March 2006.