Probus, AV aureus. 5.58 g. Lyons mint, AD 277.

IMP CM AVR PROBVS AVG, laureate, cuirassed bust right.
MARS VICTOR, Mars, naked, walking right, holding transverse 
spear in right hand and trophy over shoulder.

RIC 6; Calico 4166; Sear 11904.

With permission of Numismatica Ars Classica, 2002.