Fully Grooved Maul. Material: stone. Size: 2" W. x 5" L. x 1 1/2" deep. Description: natural stone; flat on one end; rounded on other end; fully grooved in center where a handle could be attached.
Fully grooved maul used by Native Americans. Dr. Schirmer of Minnesota State University, Mankato visited 2 July 2013 and determined that this is a Native American tool.