This reminds me of a piece I just saw at the Legion of Honor (SF) special exhibit on the etruscans. They have a Etruscan manuscript, written on linen, that was used to wrap a mummy. https://en.wikipedia.org/wiki/Liber_Linteus

I am a little disappointed the tomb where the mummy was found is from the time where Egypt was part of the Roman Empire. At this point ancient Egypt had been a colony of Rome for quite some time and beforehand a Greek/Macedonian colony for a few more centuries (under the Ptolemaic dynasty, founded by a general of Alexander the Great). If it was from a previous era, it would have been a much more interesting find (in my eyes).