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Figure 8: Relative proportion (100%=1) of the main stone artefact categories in the three settlements of the Sanganakallu-Kupgal archaeological complex (axe blanks, hammerstones, polishing hollows are mainly related to axe production; hansdstones and grinding hollows are the main food processing tools). These results are based on systematic surface recording of artefacts. Comparison with the material from test trenches shows a high correspondence between values.