Three Quarter Grooved Axe. Material: stone. Size: 2 1/4" W. x 5" L. x 1/2" D. Description: gray stone; three quarters grooved; edged on wider end; broken edge; groove encircles narrower rounded end.
Three quarter 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.