Bidspirit auction | 4” Knife River Chert Uniface

4” Knife River Chert Uniface Flake Knife Found in Mountrail Co. ND, Keele COA Ex: Dan Maas - 4” Knife River Chert Uniface Flake Knife Found in Mountrail Co. ND, Keele COA Ex: Dan Maas Collection. Condition: Authentic