Watch List notes:

Byzantine Weights, Circa 6th-7th century. Weight of 12 Keratia (Bronze, 16 mm, 2.23 g), a round coin weight for a half nomisma or semissis made from a pentanummium of Justinian I. D N IVSTINIANVS PP AVG Diademed, draped and cuirassed bust of Justinian I to right. Rev. Large X engraved over uncertain circular incuse design. Cf. SB 170. Very fine.