Philip I AR Antoninianus. 248 AD. 

Obv: IMP PHILIPPVS AVG, radiate, draped & cuirassed bust right 
Rev: P M TR P V COS II P P, Mars standing left, holding branch & resting hand 
 on shield, A in left field. 

RIC 7, RSC 145.


[Originally from an ancientauctionhouse eBay acution; imported from 
dirtyoldcoins.com 9/2006, no further info.]