You can read about the Phillipe Gysen collection here. This Probus from my collection is a little more humble: Probus, AD 276-282. Roman billon antoninianus, 3.79 g, 22.1 mm. Rome, AD 277-280. Obv: IMP PROBVS P F AVG, radiate bust right in consular robe, eagle tipped scepter in right hand. Rev: ROMAE AETER, temple, statue of Roma seated facing inside; in exergue, R * A. Refs: RIC 183; Cohen 533; RCV 12027 var.