The knives are the first tools of the humanity. Neanderthal's people were the first true human beings to colonize the world.
The raw material : Neanderthal's people used the flint found in the surface of the ground. The physical properties of the flint allowed them to cut it without breaking it. The flint is a very hard siliceous cliff, consisted of Chalcedony, Quartz and Opal, variable colour, appearing mostly under the shape of kidneys. It is a hard cliff with very fine grains and with smooth break where from the big capacity to be cut and to cut. But it did not prevent them from using the other materials, such as the limestone, the granite, the quartzite, the obsidian...
The size of flints required a sort of anticipation, display, virtual creation of the tool, before its execution. It was a question, in a series of precise knocks, and a decisive shock, of creating points and scrapers, what was not given to everybody.
It would seem that neanderthalians knives did not possess a sleeve. However it is likely that certain models of knives had it. Indeed, these blades would have been able to be fixed on bones or protected by a bound of leather.
These tools sharp edges served as weapons of hunting or defence. They were also used for the cut of food.
It is much later than starts the history of Laguiole knife.