Quintillus AE Antoninianus. Rome mint. 

IMP C M AVR CL QVINTILLVS AVG, radiate and draped bust right
FIDES MILITVM, Fides standing left, holding standard and vertical sceptre. 
Epsilon in right field. 

RIC 18; Cohen 28; Sear 11440. 

With permission of Dr. Busso Peus Nachfolger, June 2015