Balbinus AR Denarius, Rome. 21 mm, 2.82 g, AD 238. 

IMP C D CAEL BALBINVS AVG, laureate, draped and cuirassed bust right.
P M TR P COS II P P, emperor, togate, standing left, holding olive branch and transverse sceptre. 

RIC 6; Cohen 18; BMCRE 32. 

With permission of A. Tkalec AG Auction May 2010, Lot 363.