Fig 4. Umm Jirsan lithic artefacts.
A-G: Area C looters pit spoil heap, H-O: Trench 1, P-AI: Area D. Grey areas are retouched. a,b,h,k,n,n,p-ab = flakes, c,d-f, ac-ae = retouched flakes (including burins: ac and ad), cores: o, af-ai.
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