Philip II AR Antoninianus. 248 AD.

Obv: IMP PHILIPPVS AVG, radiate, draped and cuirassed bust right. 
Rev: SAECVLARES AVGG, Antelope walking left, III in ex. 

RIC 17 corr. ("Philip I"), RSC 186 corr. (ditto).

Note: RIC note: "Officina 3 normally belongs to Philip II". All known examples appear to show the head of the young Philip II, not Philip I.