Probus (276-282). AE Antoninianus, Siscia mint. Obv. IMP C M AVR PROBVS P F AVG. Radiate bust left, in imperial mantle, holding sceptre surmounted by eagle. Rev. SOLI INVICTO. Sol in spread quadriga; in exergue, XXI Є. RIC 776. AE. g. 3.62 mm. 22.00 About EF. Enamel-like dark green patina.