Copper. Old Kingdom, Dynasty 6, 2345-2181 B.C. From Giza, Tomb of Impy. Model offering tables were placed in the burial chamber to reduplicate and perpetuate the effects of the offering sets in the cult chamber above ground. The table and vessels are made from largely pure copper. It is not for another 500 years that bronze – a harder and more ductile alloy of copper and tin- becomes common in Egypt.