The notes from the display read:
Theban Tomb Complex TTC3, part of the Coptic monastery where the monk Frange served.
'Bless the monastery'
The desert-cliff tomb of Vizier Amenemope I was built around 1400 BC. Two thousand years later, the tomb became part of a monastery - home to Christian monks seeking to be close to their God. This prayer, written on a scrap of stone, addresses Jesus Christ and was written around AD 700 by a monk named Frange. Archaeologists have found over 600 of Frange's letters and prayers in the tomb he used as his workshop.
A Coptic prayer written by the monk Frange.
Limestone, Thebes, Egypt, AD c700
There is also text on the reverse, which can be seen on the museum's website here (along with a much better photo of the front),