Severus Alexander, AE as, (11.41g) 

IMP SEV ALEXANDER AVG, Laureate head right.
P M TR P VIII COS III P P, SC in ex., Emperor driving quadriga right.

RIC 498; Sear 8080; Cohen 379

With permission of Gerhard Hirsch Nachfolger, Sept. 2013.
Estimate: 175 Euro.