Partially cut separation trench in the Ptolemaic/Roman el-Keijal sandstone quarry near Edfu. Note the three grooves with intervening ridges. The tool marks appear to be those of a 2 cm-wide pick-adze, but a chisel is also a possibility. Photo by PER STOREMYR.
Partially cut separation trench in the Ptolemaic/Roman el-Keijal sandstone quarry near Edfu. Note the three grooves with intervening ridges. The tool marks appear to be those of a 2 cm-wide pick-adze, but a chisel is also a possibility. Photo by PER STOREMYR.
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Per Storemyr Geoarchaeology & Conservation 
