| RIC 729 variant; Alföldi
                type 55, n° -; Siscia. Bust type C, (A2). Denomination:
                Antoninianus. Not listed for this bust and officina in RIC, not listed for this officina in Alföldi. | 
| OBV.: IMP PROBVS INV AVG Radiate, draped and cuirassed bust right, seen from back. REV.: PROV PROBI AVG NOSTRI Providentia standing left, holding baton and cornucopiae; at foot, globe. Mintmark:  -| Є // XXI   
                  In right field ς (cursive
                    digamma) // XXI Weight: 4.6 g. Naumann Auction 8, 6 October 2013. | 
| RIC 729; Alföldi
                type 55, n° 4; Siscia. Bust type F, (B). Denomination:
                Antoninianus. | 
| OBV.: IMP PROBVS INV AVG Radiate, cuirassed bust right. REV.: PROV PROBI AVG NOSTRI Providentia standing left, holding baton and cornucopiae; at foot, globe. Mintmark:  -|ς // XXI   
                  In right field ς (cursive
                    digamma) // XXI Weight: 3.92 g. Image courtesy of Philippe Gysen |