(click image to enlarge)
'He had a pair of scissors to take off the main crop, and a dry shave (where no blood was split) followed with a razor. He got through his job very much quicker than the amateurs at Der el-Bahri, but he did not do it as cleanly. While I painted my street corner, I noticed several heads the worse for the razor, and though some talk as to the charge for the operation usual preceded it, there were seldom any complaints about the cuts in the scalps'
Walter Tyndale, An Artist in Egypt, London: Hodder & Stoughton, 1912, page 193
A different image but painted in the same place as this image, the Sebil, near the gate of Zuweyla can be seen in Walter Tyndale, Below the Cataracts, London, 1907, facing page 40.