Watch List notes:

Severus Alexander (222-235). AR Denarius, 222-228 AD. Obv. IMP C M AVR SEV ALEXAND AVG. Laureate and draped bust right. Rev. PAX AVG. Pax running left, holding branch and sceptre. RIC 168. C. 187. AR. g. 2.27 mm. 20.80 EF.