Evidently pre-contact. 11 1/2 length made of a natural bone with the joint intact and finely bound with split cane in woven band and cross strap. The end inset with a hard wood blade. These were used to kill unfaithful husbands and made by the brothers of the wronged woman. The bone is cut with ten short notches, probably the tally of the violations. Most are one piece bone. This variation is unique in our experience.