Philip I AR denarius, 244 AD, Rome, 2.76 g. 

IMP M IVL PHILIPPVS AVG., laureate, draped, cuirassed bust right.
PAX AETERNA, Pax advancing left, holding branch and sceptre.

RIC 42 var (Antoninianus); RSC 109 var (ditto). 

With permission of Helios Auction 5, June 2010, lot 384
Added in Aug. 2011.