Severus Alexander (222-235).     AE As, Rome mint, 226 AD.   Obv.    IMP CAES M AVR SEV ALEXANDER AVG. Laureate and draped bust right.        Rev.   P M TR P V COS II P P. Emperor standing left, sacrificing over lighted altar and holding roll.     RIC IV  447.     11.77 g.   27.00 mm.          VF.