Constantius II. AE2. Lyons. 

DN CONSTAN-TIVS PF AVG, rosette-diademed, draped, cuirassed bust right, A behind head
FEL TEMP RE-PARATIO, soldier standing left, one knee 
drawn up, about to spear fallen horseman wearing a 
Phrygian helmet and is sitting on ground, arms raised. 

A in left field. 
Mintmark SLG star. 

RIC VIII Lyons 102.

With permission of Roma Numismatics, May 2010