Monday, October 29, 2018

Byzantine bronze commercial weight – semuncia



Byzantine bronze commercial weight (from Artemide eLive 5 - Antiquities) – 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. See below.


The weights clockwise from upper left:
6 uncia commercial weight = 154.4 grams
two steelyard weights, left one bronze, right one lead = 24.5 & 27.2 grams
three coin weights, 1 Solidi, symbol N or four dots - 3.9, 4.0 & 4.3 grams
three commercial weights
   3 uncia = 67.8 grams
   1 uncia = 27.1 grams
   semuncia = 14.3 grams


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