I picked up a small weight today on an auction pre-bid. It was not as nice a surprise as @panzerman 's Aureus of Empress Herennia Etruscilla struck circa 251AD, but I like it. Byzantine bronze commercial weight – This one is similar to my Roman weights, but it has Greek letters to mark its weight. Simon Bendall in Byzantine Weights, pg 8, splits scale weights into commercial and coin weights. He then shows symbols for Roman and Byzantine weights. The BI on this weight is for one semuncia = 13.6 grams in theory = half an uncia (ounce) = 1/24 of an As (Roman pound). One As = 327.45 grams. This piece is 15 mm in diameter and 14 g. I have one other semuncia weight (14.3 grams), but it has no marks.
