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(FIGURE 5) This early stage fluted point (?) preform was found of the Windy City site. It illustrates an overshot flake removal pattern that represents one of the technological markers of a Clovis knapper. The arrow indicates the direction of the vector of force. This preform is made of Munsungan chert and it measures approximately 4 5/8 inches (11.7 cm) long and 2 9/16 inches (6.5 cm) wide.
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