NOTE: Extremely rare and desirable bust type with shield decorated with Medusa in combination with a rare reverse type struck only during the 2nd emmission at Siscia (famous "Invictvs" series with INV[ictvs] in obverse legend).
The reverse legend underlines close links of Siscia where this coin was struk with Probus, referring to the emperor as "noster" ("our").
Provenance: Ex Philippe Gysen collection = Ex Paul Francis Jacquier auction 45 lot 1517
OBVERSE: IMP[erator] PROBVS INV[ictvs] AVG[vstvs]
REVERSE: SPES AVG[vsti] N[ostri]; Spes walking left, holding flower and raising robe
BUST TYPE: E4 = Radiate, helmeted, cuirassed and draped bust left, holding spear and shield (decorated with Medusa), seen from the back
FIELD / EXERGUE MARKS: -/-//XXI
WEIGHT 3.72g / AXIS: 12h