Vase en Porphyre abrasé par des tubes en cuivres, strie parallèles.
Détails - Mégalithe
♦Livre♦
Experiments in Egyptian Archaeology: Stoneworking Technology in Ancient Egypt
107. They were probably used to lift the lid with thick ropes. There is strong evidence that tubes were used to drill single or multiple numbers of holes in stone vessels, and for making slots in stone artifacts. For example, eight tubularshaped marks, left after the cores had been removed, are visible in an unfinished porphyry vase in the Cairo Museum (JE18758).