Extremely rare. Guillemain only cites 1 example of this type! Virtually as struck and with almost full original silvering.
Obverse: IMP PROBVS AVG
Reverse: ROMAE AETER = Roma seated in temple, holding Victory and sceptre
BUST TYPE: H2 = Radiate bust left in consular robe, holding eagle-tipped sceptre (scipio)
FIELD / EXERGUE MARKS: -/-//R*E
WEIGHT 3.59g / AXIS: 12h / DIAMETER: 22-23mm