Philip II, as Caesar, AR Antoninianus. 

Obv: M IVL PHILPPVS CAES, radiate, draped and cuirassed bust right 
Rev: PRINCIPI IVVENT, the prince standing left, holding globe and sceptre. 

RIC 218d var (sceptre, not spear), RSC 48 var. (ditto) 

(Note:  None of the standard references list an antoninianus with 
left facing reverse with a sceptre.)

Contributed by Dane for TimeLine Originals, August, 2008.