Additional comment
Kushnir-Stein 2005: The meaning of the sign in the upper-right corner of the weight is not entirely clear. It consists of the letter mu (M) and a straight line joined to the upper end of its right bar on the right. The right bar of the M is not strictly vertical; rather, it goes diagonally from the upper left to the lower right. The straight line joins it at an angle of close to 90 degrees. Thus the combination of the right bar of the mu and the straight line could be understood as the letter gamma (Γ). This, however, is not the only way to interpret the sign. [...] In the light of all these parallels, the line joining the upper end of the letter M on our weight may have also been intended to indicate that a weight unit is meant. The M would, then, signify that this is a mina. The weight of our item is 522.2 g, which is less than the average weight of the Seleucid mina. However, given the extensive wear of the reverse side and the damage in various other places, the original weight of the item must have been doser to the standard. The place where our weight was manufactured thus seems to have employed the Seleucid mina as its basic weight unit.
Kushnir-Stein 2005: The only difference between our weight and those of Berytus is that the latter display a trident alone or a dolphin entwined around a trident, whereas on our weight a dolphin is entwined around an anchor. So far, no weights or coins with exactly the same design have been attributed to any city in Phoenicia or Palestine. Given the man y similarities between our weight and those from Berytus, then, our weight is likely to have originated either in this city or in a locality in close proximity to it.