I have 3 well used stemmed small game spear/knife tools found in Greene/Clay Co., Arkansas. The materials are local flint/chert stones. These blades are from a collection from Mitch Lewis. This blade on the right is 1 9/16" long!!! As with all the artifacts I sell, I guarantee them to be AUTHENTIC. I am a member of CSAS, AACA, MAS and GSLAS.