Trajan Decius, AE Semis, 249-251, 19mm, 4.58 gr.

IMP C M Q TRAIANVS DECIVS AVG, laureate, draped, cuirassed bust right.
S-C, Mars standing facing, head left, right hand resting on 
shield, vertical spear in left. 

RIC IV, Part III, 128 

Contributed by Dr. Hubert Lanz, auction November 2000, 
Added July 2011.