Shown is one of the many bone rasps excavated at the Tobias site, a Great Bend aspect (ancestral Wichita) village site in Rice County. This rasp, manufactured on a deer mandible, was made by cutting notches into the bone. Archeologists believe that artifacts like these could have been used as musical instruments by drawing a stick across the grooves. The rasp was recovered from the 1977 Kansas Archeology Training Program field school at the Tobias site.