Probus. Antoninianus

Probus; 276-282 AD, Ticinum, Antoninianus, 3.54g. RIC-526 pl. III.4, C-617 (2 Fr.). Obv: VIRTVS PROBI AVG Bust cuirassed l. wearing radiate helmet and holding spear over shoulder and shield. Rx: SECVRIT PERP Securitas standing l. leaning on column and crossing legs, r. hand raised to head, in exergue VIXXI (officina 6), I in r. field. Part of the EQVITI series, in which officina one places the first letter of that word in the field, officina two the second letter, and so on down to our coin of officina six with the last letter I. Scarce with this obverse legend, "The Prowess of Probus Augustus".Condsiderable silvering; a bit rough. aEF