Watch List notes:

The Eparch Collection of Roman, Byzantine and Islamic Weights
LATE ROMAN – BYZANTINE COMMERCIAL WEIGHTS

Circa 6th-7th century. Weight of 1-libra (Brass, probably once inlaid with silver, 56x16mm, 328.02 g), a thick discoid commercial- weight with two grooves on the edge (as MAH A 17); a flat recessed bottom with no visible centering hole and a raised rim; and a flat recessed top with a raised rim and a very small centering hole, libra of 328.02 g. Within a double wreath divided into four quarters by an annulet at 0°, 90°, 180° and 270°, Latin cross above ??Α. Rev. Plain. MAH 2 var. A solid and very well engraved weight, with a particularly sharp design. Very attractive dark green patina. Encrustations on the reverse (perhaps added lead?), otherwise, extremely fine.

From the Eparch Collection, acquired from Baldwin's in London.