“…The final stage was done by short retouches to achieve its specific design. An abrasion action was often performed on the sides of the stem, and in some a fluted channel was made, generally limited to the stem, but which could also extend beyond the union stem/blade (Bird, 1938) (Bell, 1965) (Nami, 2003(Nami, , 2014a(Nami, , 2014b(Nami, , 2015.…”