Constantius II, AR Siliqua, Nicomedia. AD 351-355. 

Obv: DN CONSTANTIVS PF AVG, pearl-diademedhead only right.
Rev: VOTIS-XXX-MVLTIS-XXXX within wreath.

Mintmark SMN. 

RIC VIII Nicomedia 80. 

With permission of Dix Noonan Webb Ltd - 10 Apr 2013