Constantius II. 337-361 AD. Cyzicus. 1.44g. 16mm. 

FL IVL CONSTANTIUS NOB C, laureate, draped, cuirassed bust right

GLOR-IA EXERC-ITVS, two soldiers holding spears and shields, one standard between them, O on banners.

Mintmark: SMKS

RIC VII Cyzicus 126, rated R2