Severus Alexander AR quinarius. AD 228-231. 15 mm, 1.32 g. 

IMP SEV ALEXAND AVG, laureate head right.
VIRTVS AVG, Emperor standing left, foot on helmet, holding globe and reversed spear

RIC 227; RSC 587.

With permission of Gorny & Mosch Auction 146, Lot 488, March 2006.