In September 2015 Egyptologist Wael Sherbiny of Brussels announced his rediscovery of the oldest and longest Egyptian leather roll in the Egyptian Museum in Cairo. Dating from the late Old Kingdom to the early Midddle Kingdom (2300-2000 BCE), the roll measures about 8.2 feet (2.5 meters). The manuscript, which had been lost in the museum for about 70 years, was purchased by the French Institute of Oriental Archaeology in Cairo from a local antiquities dealer sometime after the WWI. It was later donated to the Egyptian Museum, where it was unrolled shortly before the outbreak of the WWII. After it was stored in the museum it seems to have been completely forgotten until it was rediscovered by Sherbiny.
Though a relatively large number of Egyptian papyrus rolls or fragments survived in Egypt because of the dry desert climate, very few ancient Egyptian leather rolls survived. According to Sherbiny, leather was considered a very precious writing material in ancient Egypt, and it was the principal medium for recording religious texts and great historic events, as it was more practical than papyrus due to its flexibility and durability. Leather rolls, kept in the libraries and archives of temples, were also used as master copies from which cheaper copies were reproduced on papyrus. However, leather had a low rate of survival in the deseart. The Cairo roll was no exception: part of it was fragmented into very tiny pieces. Like in a jigsaw puzzle, Sherbiny pieced them together.
"The pieces formed a large pictorial-textual segment from the so-called Book of Two Ways, which is an illustrated composition containing temple rituals later adapted for the funerary use.
"This composition is known to Egyptologists as it occurs on the floorboard of Middle Kingdom coffins (2055-1650 B.C.) from the necropolis of Hermopolis in Upper Egypt.
“ 'Amazingly, the roll offers an even more detailed iconography than the Hermopolitan coffins in terms of texts and drawings,' Sherbiny said" (http://news.discovery.com/history/archaeology/oldest-and-longest-ancient-egyptian-leather-manuscript-found-150914.htm, accessed 10-01-2015).