Chert, 1.48 grams, 32.59 mm. Neolithic; circa 7,000 BCE. Bifacial leaf type with serrated edges. Very good quality knapping. In a transluscent chert. Reference: Reference: Alonzo W. Pond, Contribution to the Study of Man in Algeria. A very fine example. Provenance: from an old Continental collection, found in Algeria before 1960.