Table 3. The experimental assemblage.

	Broken flakes		Clactonian notches		Flakes with retouch-like scars		Pointed pieces		Total
1. Point and/or cone of percussion	13	12.1%	1	7.1%	1	5.6%	1	33.3%	16	11.3%
2. Negative cone of percussion					1	5.6%			1	0.7%
3. Incipient cones					1	5.6%			1	0.7%
4. Dorsal face crushing	19	17.8%	2	14.3%	4	22.2%			25	17.6%
5. Wedge-shaped fracture lines	0	0.0%		0.0%		0.0%			0	0.0%
6. Combination of 1/2 and 4	7	6.5%	2	14.3%		0.0%			9	6.3%
7. Combination of 1/2+4+5	7	6.5%		0.0%	2	11.1%			9	6.3%
8. Combination of 4 and 5	2	1.9%		0.0%	1	5.6%			3	2.1%
9. No signs	59	55.1%	9	64.3%	8	44.4%	2	66.7%	78	54.9%
Total	107	100.0%	14	100.0%	18	100.0%	3	100.0%	142	100.0%

Signs of a hammerstone impact.