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SINGLE & DOUBLE These fifteen single and double spurred gravers were discovered during the excavation of the Olive Branch site in southern Illinois. These gravers were made and used by Early Archaic Dalton people approximately 11,000 years ago. About half of them have two spurs or points. Most, but not all of the spurs are located on the ends of the flakes. Some have spurs on a side of the flake. Two of the cherts are identified as Kaolin and Cobden/Dongola. The Kaolin graver to the right in the second row measures 4.8 cm long.
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