Severus Alexander AR Limes Denarius?. Rome, AD 222-228. 1.60 gr. – 19.5 mm. O:\ IMP C M AVR SEV ALEXAND AVG, laureate and draped bust right. R:\ ANNONA AVG, Annona standing left, holding corn-ears and cornucopiae, modius at her feet to left. RIC 133. VF