010 Glass Buttes Tri Flow Obsidian Thick Biface Knife Preform - Direct Percussion Flint Knapping
19:21
012 Weird Nodule of Black Butter (Dacite) Obsidian Knife - Direct Percussion Biface Flint Knapping
6:42
Flintknapping Trash - 1920's Glass Purex Bottle
28:35
011 Double Flow Obsidian Biface - Direct Percussion Flint Knapping - Another Helmet Nodule
26:17
Flintknapping a corner notched blade - GoKnapping.com
20:34
020 Aurora Borealis Obsidian (Rainbow) Serrated Biface Part 2 - Northern Lights Series
15:04
Making a Glass Long Knife - Flintknapping a 22 Inch Long Biface from Glass Tile
10:35
Glass Butte Knap In 2021
24:19