244 AD., Philip I., Antiochia mint, Antoninianus, RIC 69.

Philip I., Antiochia mint, 244 AD.,
Antoninianus (20-21 mm / 4,25 g),
Obv.: IMP CM IVL PHILIPPVS PF AVG P M , radiate, draped and cuirassed bust of Philip right, seen from behind.
Rev.: PAX FVNDA-TA CVM PERSIS , Pax standing l., holding branch and transverse scepter.
RIC IV, III, 69 ; Coh.113 ; Vagi 2091 .

The abbreviation P M at the end of the obverse legend means "PERSICVS MAXIMVS". The reverse legend on this coin "peace established with Persia" makes reference to one of Philip's first acts as emperor - the peace treaty with the Sasanian king Shapur I. Also, the P M used in the obverse legend refers to 'Persicus Maximus' as opposed to 'Pontifex Maximus.