Watch List notes:

The Eparch Collection of Roman, Byzantine and Islamic Weights
LATIN COIN WEIGHTS

Circa 4th-5th century. Solidus weight (?) or dedicatory placquette (Bronze, inlaid with silver, 15x14x2mm, 4.02 g), square, with a flat top and bottom, and a plain edge (as MAH B1). SECV / NDI, inlaid in silver. Rev. VL, inlaid in silver. Bendall 170. MAH 413. A fascinating epigraphic curiosity. Rough green and red patina with some corrosion, good very fine.

From the Eparch Collection, ex Simmons & Simmons MB 57, 8 December 2011, 505.
Whether this is actually a weight or dedicatory plaque (see Bendall p. 56) is debatable. If it were a solidus weight it is certainly rather light (and the two cited above are 3.32 and 4.10 respectively).