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A) Piece O15 with crushing marks on the left lateral edge. 1. Residues identified before cleaning (80×, scale 500 μm); 2. Detail of crushing (20×, scale 1 mm); 3. Impact point (20×, scale 500 μm); 4. Pit associated with a crushed area (40×, scale 500 μm). B) Piece O48. 1. Detail of residues (16×, scale 3 mm); 2 and 3. Crushing (25× and 20×, both scales 1 mm).
