Title: Rhomboid-Shaped Bifacial Knife
Object type: Knife, rhomboid, bifacial knife
Date: ca. 3900–3500 B.C.
Period: Predynastic, Late Naqada l–Naqada II
Medium: Flint
Dimensions: L. 18.5 × W. 3.4 × Th. 0.5 cm (7 5/16 × 1 5/16 × 3/16 in.)
Credit line: Rogers Fund, 1916
Geography: From    Egypt      
Department: Egyptian Art
Repository: Metropolitan Museum of Art, New York, NY