Septimius Severus, AV Aureus.

SEVERVS PIVS AVG P M TR P VIII, laureate head right.
FELICITAS SAECVLI; Julia Domna, draped bust facing, 
between Caracalla, laureate, draped, cuirassed bust right
and Geta, draped bust left.

RIC 175.

Courtesy of Numismatik Lanz, 2008.