These four projectile points were recovered from the surface of a Middle Ceramic period village and donated to the Kansas Historical Society in 1972 and 1975. Shown are a large corner-notched dart point, an expanding stem dart point, a contracting stem dart point, and a triangular arrow point. After knapping the dart points were mounted to the dart fore shaft, and then thrown with an atlatl. The arrow point was hafted to an arrow shaft and shot with a bow.