Valerian I AR Antoninianus. Milan mint, 257 AD. 

Obv: IMP VALERIANVS P AVG, radiate, draped bust right, 
seen from back
Rev: VIRTVS AVGG, Virtus standing left holding Victory, 
shield and spear.

Göbl 811d. Not in RIC with this obv. legend. 

Used with permission of TimeLine Originals (www.time-lines.co.uk), June 2009