Severus Alexander (222-235) AE Sestertius (Bronze, 18.56g, 28mm) 231/235, Rome.
Obv: IMP ALEXANDER PIVS AVG Bust, laureate, to r. with aegis on l. shoulder.
Rev: PROVIDENTIA AVG / S C Providentia standing front, holding two corn-ears over modius and cornucopia.
Ref: RIC 642.