247 AD., Philip II, Rome mint, Æ Sestertius, RIC 268a.

Philip II, Rome mint,
Æ Sestertius (26-27 mm / 13.86 g), 247 AD.,
Obv.: IMP M IVL PHILIPPVS AVG , laureate, draped, and cuirassed bust right, seen from behind.
Rev.: PAX AETERNA / S - C across field, Pax standing left, holding olive branch in raised right hand and scepter in left hand.
RIC IV 268a ; Pink III, pg. 34 ; Banti 3 ; Hunter 30 ; Cohen 27 .

Pax with Mickey Mouse ears?

Curtis Clay: "I think those loops are merely stylizations of Pax's hair bun or knot at back and the roll of hair over her forehead. They don't seem to occur frequently: not on any of the dozen or so sestertii of this type of which I have plaster casts."