A nice piece of a rare Walens silica.
Cracking of the disc. Patina.
Obverse; bust of the emperor in pearl diadem, armor and paludamentum, to the right, in the rim legend:
D N VALEN-S P F AVG;
Reverse: wreath, within it legend:
VOT/V/MVLT/X, in segment RB;
Silver, diameter 17 x 18 mm, weight 1.82 g, axis 7 h.