Very rare and highly desirable heroic bust with aegis (Greek: αιγίς aigís 'goatskin', Latin: aegis) - in Greek mythology, the shield of the god Zeus and goddess Athena made from the skin of the goat Amalthea.
Obverse: VIRTVS PROBI AVG
Radiate, heroically nude bust left, holding spear and aegis, seen from the back.
Reverse: PAX AVG / VXXT
Pax standing left, holding olive-branch and long sceptre.
Billon, diameter 21,5 x 23,5 mm, weight 3,14 g.