Caracalla, AR antoninianus, 24 mm, 215 AD.

ANTONINVS PIVS AVG GERM, radiate, cuirassed bust right.
P M TR P XVIII COS IIII P P, Sol, radiate, mounting a galloping
quadriga left, holding whip and reins. 

RIC 265d; RSC 289b.

Rare.

Contributed by Dr. Hubert Lanz, auction November 2000, 
Added July 2011.