GEOFF KIDD / SCIENCE PHOTO LIBRARY GEOFF KIDD / SCIENCE PHOTO LIBRARY
Neolithic flint tools. Collection of Saharan neolithic tools consisting of flint scraper (left), flint spear point (bottom right), flint arrow head (top right) and a stemmed triangle arrow head (top centre). The Saharan neolithic period lasted from 9000 to about 6000 years ago.
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