Probus - Siscia - RIC 811 Bust Type C var
Obv:– IMP C M AVR PROBVS AVG, Radiate, draped and cuirassed bust right.
Rev:– VIRTVS PROBI AVG, Mars walking right, holding spear and trophy.
Mint – Siscia (XXIS) Emission 5 Officina 2. A.D. 278
Reference:– RIC 811 var. Bust type C (Unlisted Bust type for this RIC). Alföldi - (cf. type 96, n° 70 (officina VI)). Not in Alföldi with this combination. He notes one frontal C bust from emission 5, with mark XXIVI. Another example is known with this mark XXIS.