Trajan Decius. AD 249-251. Antoninianus 21.mm. Rome mint, AD 249.

Radiate, draped, and cuirassed bust right Rev. Genius pf the armies of
Illyricum standing left, holding patera and cornucopia; signum to right.

RIC IV 16c; RSC 49

Illyricum was the Roman Province on the Balkan Peninsular