Severus Alexander (222-235) AR Denarius. Rome, AD 222-228. IMP C M AVR SEV ALEXAND AVG. Laureate and draped bust right /PERPETVITATI AVG. Perpetuitas (or Securitas), draped, standing left, holding globe in right hand and transverse sceptre in left hand and leaning on column with left arm. IC IV 169; RSC 192. AR 3.23g