Trajan Decius, 249-251. 22 mm. 3.19 grams.
IMP C M Q TRAIANVS DECIVS AVG, his radiate bust right, draped and cuirassed, seen from the side
GENIVS EXERC ILLVRICIANI, Genius standing left holding patera over altar, standard behind, cornucopia in left.

RIC 17b. Sear III 9375

A reference to the army of Illiricum, which supported him.