Constantius II, AE of Thessalonica.

DN CONSTAN-TIVS PF AVG, pearl diademed, draped, cuirassed bust right.
FEL TEMP-REPARATIO, soldier spearing fallen horseman who 
is bare-headed, reaching backwards.
Epsilon in left field

Mintmark: SMTS
RIC VIII Thessalonica 189, rated C3

From Dane's collection. May 2009, ex biggyg2.