Severus Alexander AR quinarius. AD 231-235. 1.35 g. 

IMP ALEXANDER PIVS AVG, laureate, draped and cuirassed bust right.
MARS VLTOR, Mars, helmeted, walking right, holding spear, shield on left arm.

RIC 247; RSC 162; BMCRE 838.
Rare.

With permission of Fritz Rudolf Künker GmbH Auction 295, Lot 996, Sept. 2017.