Valentinian II, AR light miliarensis. Trier. AD 378-383.

DN VALENTINIANVS IVN PF AVG, pearl diademed, draped, cuirassed bust right.
VIRTVS-EXERCITVS, Emperor standing front, looking left,
 holding standard in right hand with hook on the shaft, and
resting left hand on shield.

Mintmark TRPS.
RIC IX Trier 53b; Sear 20216.
Rare.

Image is from the Leo Hamburger auction, 1932.