Saloninus was the son of Gallienus and became Caesar upon the death of his brother Valerian II. He led his armies on a mission to quell barbarian revolts in Germany but Postumus, his leading general, revolted and had himself declared Augustus. Saloninus, still only Caesar, fled with a group of loyalist troops but were soon surrounded by Postumus. The soldiers dug into their quarters and raised Saloninus to the rank of emperor but the siege wore them down and Postumus finally captured and executed him.
Unlisted RIC, Calico 3693a Aureus Obv: SALONVALERIANVSNOBCAES - Bare-headed, draped bust right. Rev: SPESPVBLICA - Saloninus standing right on left, holding spear, facing Spes to right, holding flower and raising skirt. $29,875 12/5/02.