Gratian, AR Siliqua, Rome, AD 367-383. 

DN GRATIANVS PF AVG, pearl diademed, draped, cuirassed bust right.
VRBS ROMA, Roma seated left on throne, holding Victory on globe 
and inverted spear.

Mintmark R star B. 

RIC IX Rome 35a; Sear 19965; RSC 86Ab.

With permission of Baldwin's auction 99, Lot 440, May 2016.