Description: A medium-sized stone scraper with arc-shaped concave working surface. Made of quartz of hydroteric origin. Concavely shaped arc of the working edge was very useful during the work with pelts which were tightened on the round wooden underlayment. Tightening of the pelts on the wooden cone or roundwood caused that the working of the pelts was easier and of higher quality. But properly shaped tools were required. The similar technology of manual working of the pelts on wooden cones is used until present day.