Extended Data Fig. 3: Photographs of lithic artefacts from layer I of Bacho Kiro Cave.
From: Initial Upper Palaeolithic Homo sapiens from Bacho Kiro Cave, Bulgaria
Pointed retouched blades and fragments (1–4, 6, 7) and piece with bifacial retouch (5). Photographs by V.S.-M. and T. Tsanova.
