Severus Alexander Denarius. 222-228 AD. 

IMP C M AVR SEV ALEXAND AVG, laureate draped bust right
AEQVITAS AVG, Aequitas standing left, holding scales & 
cornucopia. 

RIC 127, RSC 9, Sear'88 2202

Courtesy of dirtyoldcoins.com, August 2009.