Diocletian. AE Follis. 300-301 AD. Trier. 

IMP DIOCLETIANVS PF AVG, laureate, cuirassed bust right
FORTVNA REDVCI CAESS NN, Fortuna standing left, holding 
rudder over globe and cornucopiae, star in right field, mintmark BTR. 

RIC VI Trier 401. 

With permission of Roma Numismatics, October, 2009