Archaic Fully Grooved Axe. Material: stone. Size: 3" W. x 4 1/2" L. x 1 1/2" D. Description: Basalt chert; fully grooved; edged on wider end; groove encircles narrower rounded end; age: 8,000-2,500.
Archaic fully grooved axe used by Native Americans. Dr. Schirmer of Minnesota State University, Mankato visited 2 July 2013 and determined that this is a Native American tool.