Gallienus, Billon 36mm medallion, Rome. Sole reign. 255-256 AD. 

CONCORDIA AVGVSTORVM, laureate, draped, cuirassed bust of 
Gallienus right facing diademed, draped bust of Salonina left.
MONETAE AVGG, the three Moneta standing left, each 
holding scales and cornucopiae, piles of coins at their feet.

Goebl 330; Gnecchi 4; RIC -; RSC -; BMC medallions 4 var (rev. legend).