Claudius II A.D. 268-270. AE Antoninianus. 

Obverse: IMP CLAVDIVS AVG, radiate head right
Reverse: VICTORIA AVG, Victory running right, holding wreath 
and palm
Gamma in right field.
RIC 107. Cohen 293. 

Courtesy of www.chijanofuji.com, Dec. 2011.