Valerian I AR Antoninianus, 3.90 grams, 20.45 mm. Milan. 257 AD.  

Obv: IMP VALERIANVS P AVG, radiate, draped and cuirassed bust right.
Rev: SECVLI FELICITAS, Felicitas standing left, holding caduceus 
and cornucopiae.  

RIC V-I, 249; Sear 9971.

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