The standardised form in which copper was traded, in a rectangular shape with concave sides and protruding corners, resembling a stretched oxhide. Each ingot weighed 30 kilos on average. Some bear incised marks on their surface, probably connected to the copper trade. Minoan Crete imported copper from other areas, as the island lacks deposits of the metal. Lead isotope analysis of Neopalatial ingots has shown that the raw material came from Cyprus and another area, as yet undetermined. Copper ingots have been found at many Neopalatial sites in Crete, but the largest number known to date come from the Royal Villa of Agia Triada. In Linear B, the word “talanton” is represented by logogram *118, a stylised pair of scales, and is the highest unit of weight in the Minoan system of weights. The logogram is found on tablets listing goods using units of weight and numerical signs.