Watch List notes:

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

Circa latest 4th-5th century. Weight of 12-grammata = 1/2-ounkia (Bronze or brass, 16x13x7mm, 13.43 g), a thick, rectangular 'Imperial(?)' commercial-weight with lightly beveled edges (as MAH B3), nomisma of 4.46 g. Two half length laureate and draped male imperial busts facing each other; the one at the right very possibly bearded; both busts completely incuse. Rev. I B. Cf. Bendall 80-81. Powerful and attractive with a deep dark green patina. About extremely fine.

From the Eparch Collection, acquired from the Simmons Gallery in London.