Gallienus, AE of Parion, Mysia. 4.01 g. 

IMP P LIC EGN GALLIENVS AVG, laureate, draped, cuirassed bust right.
C G I H P, Genius standing left by altar, holding Nike and cornucopiae. 

SNG Paris 1524. 
Courtesy of Helios Auction 5, June 2011