Valens AV Solidus. Struck 364-367 AD. 

DN VALEN-S PF AVG, pearl diademed, draped, cuirassed bust right
RESTITVTOR REIPVBLICAE, Valens standing facing, holding 
labarum and Victory on globe.

Mintmark SMNI. 

RIC IX Nicomedia 2c var (officina)
RIC lists only SMNS for this obverse legend break.

Courtesy of Numis-Fabius-Coins-Schweiz, Aug. 2010.