Europe
2800-2500 B.C
Light grey flint of trapezium shape with slightly convex sides, rectangular cross-section, convex cutting edge, finely polished blade. L. 5.2″ (13.3 cm).
– Klochko V. I., Weaponry of societies of the Northern Pontic culture circle: 5000-700 BC. Poznań : Adam Mickiewicz University, Institute of Eastern Studies, Institute of Prehistory, 2001, Fig. 18: 4