Coin depicted roughly twice actual size*

As of Caracalla

Bronze as, 25mm, 7.73gm, issued AD 208 Rome mint.

Obv: ANTONINVS PIVS AVG, Laureate head right.

Rev: PROF AVGG PONTIF TRP XI COS III S C, Caracalla, in military attire, on horse galloping left, brandishing javelin at fallen foe.

References: see Sear 7003, RIC 438.

Scarce.