Severus Alexander, AE As. AD 229. 

IMP SEV ALEXANDER AVG, laureate head right.
LIBERALITAS AVGVSTI IIII SC, Liberalitas standing left, 
holding abacus and cornucopiae. 

RIC 577 var (bust type); BMCRE 563 note; Sear 8064; Cohen 137.

With permission of Numismatik Lanz, July 2006.