Square Bronze Weight is it Islamic or Byzantine? Date, Ref. Etc.?

[Joe Sermarini]

Square Bronze Weight is it Islamic or Byzantine? Date, Ref. Etc.?

Square bronze weight, edges beveled on both sides, unmarked, 80.431g, 33.9x34.8x9.2mm.

I found others this shape identified as Islamic, but they were marked. Not sure what 80.431g would weigh. Anyone know? Thanks.

[v-drome]

Maybe an unmarked 3 Uncias?

https://pondera.uclouvain.be/artifact/16369/

https://pondera.uclouvain.be/browse/?id=&object_type=&authenticity=&denominations=47&material=1&shape=1&length_metric_min=&length_metric_max=&width_metric_min=&width_metric_max=&height_metric_min=&height_metric_max=&inscription__technique=&excavation_date=&o=&page=1

This is a pretty neat site, by the way.  Lots to explore.  Holland says that there are 20 Dinar weights, though none from Caesarea that he knew of, and they were not flat squares like this one, so not much help.