New ways of looking at highly organised stone quarrying in Ancient
Segmented chisel tracks in the Ptolemaic part of the Gebel el-Silsila sandstone quarry. The two large 'quarry marks' at center (resembling a harpoon or arrow combined with the numeral four) and another smaller, fainter one at upper left (a harpoon only) symbolized the god Horus but may also have had some meaning related to the …
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