Watch List notes:

Severus Alexander. AD 222-235. AR Denarius (19mm, 3.21 g, 7h). Rome mint. 9th emission, AD 228. Laureate head right / Severus Alexander (as Romulus) advancing right, holding transverse spear and trophy. RIC IV 224; BMCRE 522–3; RSC 584. Near EF, small spot of copper oxide in field on obverse.