Watch List notes:

Traianus Decius (249-251 AD). AR Antoninianus (18,8 mm, 3 g), Rome.
Obv. IMP C M Q TRAIANVS DECIVS AVG, Radiate, draped and cuirassed bust to right, sen from behind.
Rev. GENIVS EXERC ILLYRICIANI, Genius, wearing polos on head, standing left, holding patera and cornucopiae; to right, standard. RIC 16c.