Electron microscope analysis 58

For the second group of tablets the leading edge of the incision is more rounded and there are grooves along the wide slope of the cutting angle. The third type of tool is equally distinct. When combined with tablets found in earlier years there are now 22 examples of three sided incised steatite tablets all incised with the same sequence of signs. These 22 tablets can be grouped into three different sets of tablets based on the type of tool used to inscribe them and the style of inscribing. [The ovals in the photographs are air holes in the mold; they were not in the original piece.]