Salonina joint reign with Gallienus, 255-258 AD. Samosata.
 AE Antoninianus.

CORN SALONINA AVG, Diademed, draped bust right, on crescent.
CONCORDIA AVGG (R and D retrograde), Gallienus standing right
 clasping hands with Salonina standing left, 
Star above.

Ref: RIC V-1, 63; Göbl Göbl 1706

ebay sale, March 2003