Roman Empire, Probus, Antoninian Serdica

A well-circulated, attractive example of this issue.

Obverse: a military bust of the emperor facing left, with the following legend on the rim:
IMP C M AVR PROBVS AVG;

Reverse: The emperor charging to the right, piercing with his spear a barbarian begging for mercy; a discarded shield lies beneath his horse; the legend on the rim reads:
VIRTVS PROBI AVG, with the segment KA•Delta•;