Valerian I Antoninianus, 3.38 gr, 21.11 mm. Milan. 257 AD.  

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

Göbl:- (811d var = AVG); RIC:- (266 var (obv legend); 
Sear:- (9992 var (obv. legend)). 

Note: The type with VIRTVS AVG (as opposed to VIRTVS AVGG) and 
Virtus holding Victory is listed in all major works only with 
the obverse legend IMP P LIC VALERIANO AVG. This coin appears to
be unpublished. There is no example on gallienus.info.

Courtesy of TimeLine Originals (www.time-lines.co.uk), Apr. 2010