Byzantine Weights, Circa 5th-7th century. Weight of 12 Keratia (Bronze, 11x12 mm, 2.24 g), a square coin weight for a half nomisma or semissis with plain edges. I B in silver inlay. Rev. Plain. Bendall -. MAH 447ff var. (without inlays). Pera 489ff var. (without inlays). Some adjustment marks and scratches, otherwise, good very fine.