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The following pictures go through a slight progression from a flake to a rough biface that was broken. The flake was from a polyhedral core I was shaping, and I started to work on it bifacially bringing up the center line with direct percussion. In…

The following pictures detail the "cleaning process" of clearing cortical flakes off a nodule of Georgetown Flint. Some of the flakes show decent feather terminations, while others may detail a hinge or step fracture. This can be caused by a variety…