Watch List notes:

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

Circa 6th-7th century. Weight of 36-nomismata (Brass, 48x19mm, 161.24 g), a discoid coin-weight with recessed top and bottom, centering holes and a prominent, bulging edge between two grooves (as MAH A23), nomisma of 4.47 g. N° Λ S around centering hole within a shallow depression; below, cross. Rev. Plain, but for centering hole within a shallow depression. Cf. MAH 30. A large and impressive piece with a dark patina. Some encrustations on the top and some scratches on the bottom, otherwise, nearly extremely fine.

From the Eparch Collection, acquired from a private collection in London.