Numerian, Antoninianus. 283-284 AD. Cyzicus. 

IMP C M AVR NVMERIANVS PF AVG, radiate, cuirassed bust right 
VIRTVS AVGGG, Numerian standing right, holding sceptre,
 receiving Victory on globe from Jupiter, standing left,
 holding sceptre. 
Gamma in lower centre. 
Mintmark XXI. 

RIC V-2, 469. Scarce.
With permission of Roma Numismatics, March, 2010