Roman Empire, Probus, Antoninian 4th mint

OBVERSE: IMP C M AVR PROBVS P F AVG
REVERSE: RESTITVT ORBIS
BUST TYPE: A2 = Radiate, draped and cuirassed bust right, seen from rear
FIELD / EXERGUE MARKS: GAMMA//XXI
EMMISSION: 4
WEIGHT: 4,68 / AXIS:7h / DIAMETER: 20-20,5mm
Attribution of this coin to the 4th unspecified oriental mint instead of Antiochia (as in RIC V.II) is based on the article by S. Estiot, "L’Empereur et l’usurpateur: un 4e atelier oriental sous Probus"; Studies in ancient coinage in honor of Anndrew Burnett, Spink, London, 2015.

Only 7 specimens of this type are cited in the above article.