Severus Alexander, AD 222-235, AR Denarius. Rome. 20mm., 3.28g.

IMP C M AVR SEV ALEXAND AVG, Laureate, draped bust right.
PAX AETERNA AVG, Pax standing left, holding branch and sceptre.

RIC 165; RSC 183. 
With permission of Naville Numismatics Auction 11, Lot 237, Nov. 2014.