here's Probus variation for the bust type
Probus
A.D. 278
Ӕ Antoninianus
20mm 2.0g
IMP C M AVR PROBVS P AVG; Radiate, draped and cuirassed bust left, holding shield, seen from back.
VIRTVS PROBI AVG; Mars walking right, holding spear and trophy
In ex. XXIV
RIC Vi Siscia 816 var.; Alföldi type 96, n° 166, Siscia
