Chronology: Pink's 2nd emission of Siscia, 277 CE. 
      
| RIC 624; Alföldi
                type 4, n° 1; Siscia. Bust type H, (H2). Denomination:
                Antoninianus. | 
| BV.: IMP C M AVR PROBVS
                  P F AVG Radiate bust left in imperial mantle, holding sceptre surmounted by eagle. REV.:ADVENTVS AVG Emperor riding right, right hand raised, left holding spear. Mintmark: In left field A // XXI Weight: 3.65 g. | 
| RIC 624; Alföldi type 6, n° 4; Siscia. Bust type H, (H2). Denomination: Antoninianus. | 
| OBV.: IMP C M AVR PROBVS
                  P F AVG Radiate bust left in imperial mantle, holding sceptre surmounted by eagle. REV.:ADVENTVS AVG Emperor riding left, right hand raised, left holding sceptre, captive at foot. Mintmark: In right field Δ // XXI Weight: 3.55 g. Image provided courtesy of Philippe Gysen | 
| RIC 624; Alföldi
                  type 5, n° 92; Siscia. Bust type H, (H2). Denomination:
                  Antoninianus. | 
| OBV.: IMP C M AVR
                    PROBVS P F AVG Radiate bust left in imperial mantle, holding sceptre surmounted by eagle. REV.: ADVENTVS AVG Emperor riding left, right hand raised, left holding sceptre. Mintmark: In right field S // XXI Weight: ? Image provided courtesy of Martin Griffiths. | 
5th emission of Siscia, 278 CE.
| RIC 624; Alföldi
                type 5, n° 106; Siscia. Bust type G, (E). Denomination:
                Antoninianus. | 
| OBV.: IMP C M AVR PROBVS
                  P F AVG Radiate, helmeted, cuirassed bust left, holding spear and shield. REV.: ADVENTVS AVG Emperor riding left, right hand raised, left holding sceptre. Mintmark: // XXIV Weight: ? Image provided courtesy of Tom Kendall. | 
| RIC 624; Alföldi
                type 5, n° 96; Siscia. Bust type H, (H2). Denomination:
                Antoninianus. | 
| OBV.: IMP C M AVR PROBVS
                  P F AVG Radiate bust left in imperial mantle, holding sceptre surmounted by eagle. REV.: ADVENTVS AVG Emperor riding left, right hand raised, left holding sceptre, captive at foot. Mintmark: // XXIV Weight: 3.45 g. Image provided courtesy of Barbara Serofilli, Mediterranean Coins. | 
| RIC 624; cf. Alföldi
                type 5, n° 99 (officina Q); Siscia. Bust type -, (B1). Denomination:
                Antoninianus. | 
| OBV.: IMP C M AVR PROBVS
                  P F AVG Radiate, cuirassed bust left. REV.: ADVENTVS AVG Emperor riding left, right hand raised, left holding sceptre. Mintmark: // XXIV Weight: ? Image provided courtesy of Russ. | 
| RIC 624; cf. Alföldi
                type 5, n° 106 (officina V); Siscia. Bust type G,
                (E). Denomination:
                Antoninianus. | 
| OBV.: IMP C M AVR PROBVS
                  P F AVG Radiate, helmeted, cuirassed bust left, holding spear and shield. REV.: ADVENTVS AVG Emperor riding left, right hand raised, left holding sceptre. Mintmark: // XXIVI Weight: 3.46 g. Image provided courtesy of Philippe Gysen |