Engraved stoneware

This stoneware was found in two pieces during excavation, then reattached.

There are various theories about what this grooved stone tool was used for. One theory is that it is for grinding and was used to remove calluses from human skin, especially from the heels. Another idea is that it is a tool for imprinting patterns when making pottery. It is also hypothesized to be a stone bat that was used to make bark cloth.